#anankafasteners

🔩 Titanium Grade 5 Allen Bolts – Engineered for Excellence

Proudly manufactured by Ananka Fasteners, these precision-engineered bolts represent the next generation of fastening solutions.

✅ Titanium Grade 5 – unmatched strength-to-weight ratio ✅ ISO Certified – ensuring top-tier quality standards ✅ Now advancing into the Aerospace and API sectors ✅ New offices launched in the USA 🇺🇸 and UK 🇬🇧

At Ananka Fasteners, we’re not just expanding globally — we’re pushing the boundaries of performance and reliability.

📞 Connect with us for high-performance fasteners that meet the most demanding industrial and aerospace applications.

Introduction

In maritime engineering and marine fabrication, selecting the appropriate fastening components is paramount to ensuring structural integrity, corrosion resistance, and long-term performance. Among the vast array of fastening solutions available, 304 stainless steel machine screws stand out as a versatile and cost-effective choice. Their widespread use in marine environments stems from their reliable mechanical properties, resistance to environmental degradation, and adaptability across various marine assemblies.

This article explores the metallurgical characteristics, performance attributes, and application suitability of 304 stainless steel machine screws in marine-grade equipment.

What Are 304 Stainless Steel Machine Screws?

Machine screws are precision-threaded fasteners engineered to engage with pre-tapped holes or mating nuts. They are utilized in applications demanding controlled torque and uniform clamping pressure, particularly in metal-to-metal assemblies. When fabricated from 304 stainless steel, these screws exhibit an optimal combination of corrosion resistance and tensile strength, making them suitable for semi-corrosive marine environments, especially in topside or splash zone installations.

Material Profile: Composition & Properties of 304 Stainless Steel

304 stainless steel is a member of the austenitic AISI 300-series and is chiefly alloyed with the following elements:

Iron (Fe) – Base metal

Chromium (Cr) – approximately 18%, which promotes passivation and enhances corrosion resistance.

Nickel (Ni) – ~8% (for ductility and enhanced corrosion resistance)

Key Metallurgical and Mechanical Properties:

Corrosion Resistance: Exhibits excellent resistance to atmospheric and mildly saline conditions due to the formation of a stable chromium oxide (Cr₂O₃) passive layer.

Mechanical Strength: Ultimate tensile strength typically ranges between 515–750 MPa, providing robust fastening under mechanical loading.

Ductility and Toughness: High elongation at break (≥40%), enabling resistance to shock and vibration.

Non-Magnetic Behavior: Non-ferromagnetic in the annealed state; however, slight magnetism may develop post-cold-working.

Thermal Stability: Performs well up to moderately elevated temperatures (~870°C intermittent service), making it ideal for engine and electrical enclosures.

Why Choose 304 Stainless Steel Screws for Marine Applications?

Although 304 SS does not match the chloride pitting resistance of 316 SS (which includes 2–3% Molybdenum), it is widely specified in non-submerged or intermittently wet marine environments due to its:

Advantages:

Cost Efficiency: Lower alloying content makes it more economical than molybdenum-bearing grades like 316 or duplex stainless steels.

Extensive Availability: Compliant with global standards such as ASTM A193, DIN, and ISO, and offered in a wide range of head types, thread configurations, and dimensional specifications.

Adequate Marine Corrosion Resistance: Suitable for above-deck hardware, coastal installations, and indoor marine compartments.

Fabrication Versatility: Compatible with welding, machining, and forming processes without loss of corrosion resistance.

Marine Applications of 304 Stainless Steel Machine Screws

304 SS machine screws are integrated across numerous marine subsystems and hardware components:

1. Deck and Superstructure Hardware

Used to fasten cleats, railings, winch plates, and deck-mounted brackets.

2. Marine Engine and Machinery Assemblies

Ideal for fastening control housings, engine shrouds, pump casings, and protective equipment covers.

3. Electrical and Navigation Panels

Ensures conductive-free fastening in switchboards, marine lighting systems, and navigation control units.

4. Marina and Dock Fixtures

Suitable for weather-exposed components like dock brackets, signage plates, and structural guards.

5. Yacht and Boat Interiors

Commonly used in cabinetry, seat frame assemblies, and stainless fixtures for corrosion-free aesthetics.

Limitations in Saltwater Environments

While 304 SS offers reliable performance in aerial and splash zones, it lacks the pitting and crevice corrosion resistance required for continuous saltwater immersion or high-chloride concentrations.

For submerged applications or chemical exposure zones, opt for:

316 Stainless Steel (A4)

Duplex Stainless Steel (e.g., UNS S31803/S32205)

Super Duplex (UNS S32750/S32760)

Maintenance Recommendations for Marine Durability

Even corrosion-resistant materials benefit from basic care in marine environments:

Routine Cleaning: Rinse with fresh water post-exposure to salt spray to remove chloride residues.

Insulate from Carbon Steel: Prevents galvanic coupling that accelerates corrosion.

Apply Anti-Seize Lubricants: Especially in high-humidity zones to prevent thread galling and facilitate removal.

Periodic Inspection: Check for discoloration or early signs of corrosion and replace if necessary.

Conclusion

304 stainless steel machine screws provide an optimal balance of performance, availability, and cost for a broad spectrum of marine-grade assemblies, particularly those not subject to full immersion or harsh saline exposure. When used with appropriate design practices and maintenance schedules, they serve as reliable fasteners for both recreational and commercial maritime applications.

Whether you're engineering a yacht interior, outfitting a coastal dock, or installing deck-mounted hardware, 304 stainless steel screws remain a proven and trusted solution.

Frequently Asked Questions (FAQ)

1. Are 304 stainless steel screws appropriate for continuous submersion in marine environments?

Not recommended. While 304 SS is corrosion-resistant, continuous immersion in seawater may cause localized corrosion. 316 SS or duplex grades should be used instead.

2. Is 304 stainless steel magnetic?

In its annealed form, it is non-magnetic. However, cold working processes like forming or machining can impart slight magnetic properties.

3. How can corrosion be mitigated on 304 SS screws in marine use?

Rinse with fresh water after saltwater exposure

Avoid contact with dissimilar metals

Use protective coatings or anti-seize compounds

4. What head types and threads are available in 304 SS machine screws?

Available in multiple configurations such as:

Head Types: Pan, Flat, Round, Hex, Truss

Threads: UNC, UNF, Metric Coarse/Fine

Standards: ASTM, ISO, DIN

5. Where to source marine-grade 304 SS machine screws?

📦 Precision Meets Presentation | Washer Packing Excellence

📍 Ananka Fasteners Pvt. Ltd.

Here’s a look at our latest Hot Dip Galvanized (HDG) washers — expertly packed for optimal protection, organization, and transit-readiness.

Why does packaging matter? Because quality doesn’t end at production — it’s reflected in how we deliver it. Every washer in this shipment reflects our commitment to durability and detail, from factory to field.

🛡️ Type: Flat Washers

🧰 Finish: Hot Dip Galvanized (HDG)

📦 Packing: Industrial-grade corrugated boxes + poly-wrap to prevent oxidation and preserve coating integrity

🏢 Ananka Fasteners Pvt. Ltd. — ISO Certified & advancing toward Aerospace and API certifications.

Proudly India-based, with a global footprint in the USA & UK 🌍

💼 Industries We Serve:

* Oil & Gas

* Marine

* Offshore

* Subsea

* Chemical

* Nuclear

* Medical

🔧 Our Capabilities:

* Custom Fastener Development

* Precision CNC Machining

* Advanced Surface Coating

* Non-standard Material Handling

🛠️ Product Line Includes:

* High-tensile & Non-standard fasteners

* Alloy & Corrosion-resistant solutions

* Imperial & Metric series

* Bolts | Nuts | Washers | Studs | Special parts

🔩 Threading in Process | Performance in Every Piece 📍 Ananka Fasteners Pvt. Ltd. In focus: Double-ended studs (Size: 1/2" x 61mm) 📏 Material Grade: B8 Class 2 🛠️ Ready for Roll Threading — a process that enhances strength, accuracy, and surface finish. This is not just a stud — it’s a symbol of our precision-engineered excellence. At Ananka Fasteners, we combine advanced manufacturing with global quality benchmarks. ✅ ISO Certified | Progressing towards Aerospace and API Certifications 🌐 We're not just in India anymore — now proudly operating in the USA and UK. (Details on our profile.) 🎯 Headquartered in India. https://anankafasteners.com/contact-us/

Screws are essential fasteners used in nearly every industry from construction and furniture to automotive and aerospace. As one of the most critical components for fastening materials together, screws come in various types, materials, and sizes depending on the application. In this blog, we will explore what makes a reliable screw manufacturer, the types of screws available, key considerations for choosing the right screw, and why sourcing from a trusted screw manufacturer guarantees precision, strength, and long-lasting reliability in every application.

What is a Screw Manufacturer?

A screw manufacturer is a company or industrial facility that specializes in the production, design, and supply of screws for various mechanical and structural applications. These manufacturers use precision machinery and engineering expertise to produce screws that meet international standards like DIN, ISO, ASTM, ANSI, and BS.

Manufacturers cater to multiple sectors, such as:

Construction

Oil & Gas

Automotive

Aerospace

Marine

Electronics

Furniture and Woodworking

Types of Screws Manufactured

Screw manufacturers produce a wide variety of screw types based on usage, material, and threading. Here are some commonly manufactured screws:

1. Wood Screws

Used to fasten wood materials. With thick threads and pointed tips, they easily screw into wood.

2. Machine Screws

Designed for precision assembly of machinery and electrical components. Usually paired with nuts or tapped holes.

3. Sheet Metal Screws

Used to fasten metal pieces. Designed with precision-cut threads, these screws efficiently tap into metal substrates without the need for pre-drilling

4. Self-Tapping Screws

These create their hole while being driven into the material, often used for plastics and soft metals.

5. Self-Drilling Screws

Designed with an integrated drill bit tip, these screws allow direct installation without pre-drilling.

6. Socket Head Cap Screws

Known for their cylindrical heads and internal hex drives, commonly used in mechanical assemblies.

7. Thumb Screws & Set Screws

Used in tool-free applications and for securing components in assemblies.

Materials Used in Screw Manufacturing

Material selection plays a critical role in determining the screw’s long-term durability and operational efficiency. Leading screw manufacturers offer products in:

Stainless Steel (304, 316, 410, 904L)

Carbon Steel

Alloy Steel

Brass

Copper

Aluminum

Titanium

Inconel, Monel, and Hastelloy (for high-corrosion environments)

Nylon or plastic (non-metallic screws for insulation and lightweight needs)

Coatings such as zinc plating, hot-dip galvanizing, black oxide, and PTFE coatings are also applied to improve corrosion resistance.

Screw Manufacturing Process

1. Raw Material Selection

Choosing high-quality steel wires or bars based on the application.

2. Cold Heading

The screw is formed using dies and punches at room temperature to shape the head and body.

3. Thread Rolling

Threads are rolled (not cut) for added strength using thread dies.

4. Heat Treatment

Screws undergo heat treatment to significantly boost their durability and load-bearing capacity.

5. Surface Finishing

Includes coating, passivation, or plating to enhance corrosion resistance.

6. Quality Control

Dimensional accuracy, tensile testing, hardness checks, and corrosion resistance tests are performed to ensure international quality standards.

Applications of Screws

Screws are used in numerous applications, including:

Steel Structures and Bridges

Furniture Assembly

HVAC Systems

Machinery Components

Electronic Devices

Boilers and Pressure Vessels

Railway and Marine Equipment

Why Choose a Trusted Screw Manufacturer?

Choosing a reputable screw manufacturer ensures:

Precision engineering and tolerance

Material traceability

Custom screw solutions

Compliance with international standards

Consistent quality and on-time delivery

Technical support and documentation

Custom Screw Manufacturing Services

Many top manufacturers offer custom screw manufacturing based on client specifications:

Non-standard dimensions

Unusual materials

Unique thread forms

Special coatings or finishes

Bulk or small quantity orders

This flexibility is especially beneficial for sectors with unique engineering needs, such as defense, aerospace, and heavy machinery.

Ananka Group - Leading Screw Manufacturer & Supplier in India

Ananka Group is a renowned screw manufacturer and supplier in India, offering a wide range of industrial screws in stainless steel, carbon steel, alloy steel, and exotic metals. Located in Vasai, Maharashtra, our modern manufacturing facility features cutting-edge machinery and a skilled quality assurance team.

Our Screw Product Range:

Wood Screws

Machine Screws

Socket Screws

Self-Tapping & Self-Drilling Screws

Custom Screws as per Drawings

Industries Served:

Oil & Gas

Energy & Power

Aerospace

Automotive

Infrastructure & Construction

Marine & Offshore

With exports to USA, Canada, UK, Germany, UAE, Singapore, and more, Ananka Group is your trusted partner for industrial screw solutions worldwide.

Conclusion

Choosing the right screw manufacturer ensures the reliability and strength of your assemblies, machinery, or structures. Whether you need standard screws or custom-engineered solutions, working with a certified and experienced manufacturer is the key to long-term performance and safety. From material selection to dimensional accuracy, every detail matters in screw manufacturing.

FAQs

Q1: What distinguishes a bolt from a screw in terms of design and application?

A: Bolts are typically used with nuts, while screws are often self-threading and used directly in tapped holes or soft materials.

Q2: Can I get custom screws made for my application?

A: Yes, most manufacturers like Ananka Group offer custom screw manufacturing based on drawings or specific requirements.

Q3: What materials are best for marine-grade screws?

A: Stainless steel grades like 316, or high-performance alloys like Monel or Inconel, are ideal for marine applications due to their corrosion resistance.

Q4: Do screw manufacturers offer coatings for corrosion resistance?

A: Yes, options include zinc plating, hot-dip galvanizing, PTFE coating, and black oxide finishes.

Q5: What standards should I look for in screw manufacturing?

What are High Nickel Alloy Fasteners?

High Nickel Alloy Fasteners are specialized components made from nickel-rich alloys designed to offer excellent performance in environments that are too aggressive for conventional fasteners. These environments typically include extreme heat, corrosive chemicals, high pressures, and fluctuating stress loads. With nickel as the primary element, these fasteners exhibit unique characteristics such as high thermal stability, corrosion resistance, and mechanical strength.

These fasteners are essential in critical infrastructure and equipment that cannot afford failure, such as chemical processing units, marine platforms, nuclear plants, oil & gas refineries, and aerospace assemblies.

Why Nickel? Understanding the Role of Nickel in Alloy Fasteners

Nickel is a versatile transition metal that improves the corrosion resistance, strength, ductility, and thermal stability of metals when used in alloy form. In fasteners, nickel plays a vital role by:

Enhancing Corrosion Resistance: Nickel is inherently resistant to oxidation, rust, and chemical attack, especially in chloride, acid, and caustic environments.

Increasing Temperature Stability: Nickel-based alloys maintain structural integrity at both cryogenic and elevated temperatures.

Improving Mechanical Strength: Nickel contributes to high tensile and yield strength while maintaining ductility.

Resistance to Stress Corrosion Cracking (SCC): Crucial for equipment under constant load in corrosive environments.

Types of High Nickel Alloy Fasteners

Depending on their application, high nickel alloy fasteners come in a wide range of types and sizes.

1. Bolts

Hex and Heavy Hex Bolts: For high-load applications in offshore and nuclear projects.

Stud Bolts: Preferred in flanged connections like pipelines and pressure vessels.

U-Bolts, Eye Bolts, Carriage Bolts: Used for securing pipes, equipment, or structural assemblies.

2. Nuts

Hex and Heavy Hex Nuts: Standard fastening for bolts.

Lock Nuts: Designed to resist loosening under vibration.

Coupling Nuts: For connecting threaded rods.

Wing Nuts: For applications requiring hand-tightening or decorative finishes.

3. Washers

Flat Washers: Distribute load and prevent surface damage.

Spring & Split Washers: Add flexibility and maintain tension under vibration.

Common Grades of High Nickel Alloy Fasteners

Nickel alloy fasteners are not one-size-fits-all. Below are commonly used high nickel alloy grades:

Chemical Composition of Common High Nickel Alloys

Note: Exact percentages vary based on standards and specifications.

Mechanical Properties

Benefits of High Nickel Alloy Fasteners

High Corrosion Resistance – Outstanding performance in acidic, alkaline, and saline environments.

Heat Resistance – Withstand extreme temperatures without losing strength.

Pressure Endurance – Ideal for high-pressure applications.

Stress & Creep Resistance – Retain shape and structure under mechanical and thermal stress.

Longevity – Extended service life in demanding environments.

Non-Magnetic – Useful in sensitive electronic and electromagnetic environments.

Applications of High Nickel Alloy Fasteners

Chemical Processing Plants

Aerospace & Aviation

Marine & Offshore Engineering

Desalination Plants

Nuclear Power Plants

Oil & Gas Industry

Pollution Control Equipment

Heat Exchangers and Boilers

Food Processing Units

Standards & Specifications

High Nickel Alloy Fasteners are manufactured in compliance with global standards:

ASTM Standards: ASTM B160, B161, B163, B164, B574, B446

ASME Standards: ASME B18.2.1, B18.2.2

DIN Standards: DIN 931, 933, 934, 975

ISO Standards: ISO 898-1, ISO 3506

NACE Compliance: MR0103, MR0175 for sour gas applications

High Nickel Alloy Fasteners Manufacturer & Supplier

Ananka Group is a reputed manufacturer, supplier, and exporter of India's premium-grade High Nickel Alloy Fasteners. With advanced manufacturing facilities and in-house quality control, we offer fasteners in various grades, sizes, and surface finishes to meet diverse industrial needs.

Why Choose Ananka Group?

Ready stock of Nickel alloy bolts, nuts, washers, screws & threaded rods.

Exporting to over 50+ countries, including UAE, Saudi Arabia, Singapore, USA, UK, Germany, and Australia.

ISO, PED, and CE certified manufacturing processes.

Competitive pricing and prompt delivery.

Conclusion

High Nickel Alloy Fasteners are indispensable for industries requiring materials that perform under extreme heat, pressure, and corrosive environments. Whether you need Inconel bolts for high-temperature resistance or Monel nuts for marine corrosion protection, choosing the right fastener grade is crucial. Ananka Group offers complete solutions with world-class manufacturing, quality, and export capabilities.

Frequently Asked Questions (FAQ)

Q1: Are High Nickel Alloy Fasteners better than stainless steel?A: Yes, in extreme conditions like high temperatures and corrosive environments, nickel alloys outperform stainless steel in both longevity and strength.

Q2: Can I get fasteners in customized sizes and threads?A: Absolutely. Ananka Group specializes in custom fastener solutions as per your engineering drawings or specifications.

Q3: Do you offer third-party testing and material certification?A: Yes, upon request, we provide Mill Test Certificates (MTC), third-party inspections, and NACE/ISO certifications.

Q4: How do I choose between Inconel, Monel, and Hastelloy fasteners?A: It depends on your application—Monel for marine, Inconel for high heat, and Hastelloy for chemical resistance. Our team can guide you.

Anchor bolts are a vital part of modern construction, providing secure connections between structural elements and concrete foundations. Their primary role is to transfer loads and ensure the integrity of various building components, from steel columns to heavy machinery bases.

In this article, we explore anchor bolts in depth, covering their types, materials, installation methods, industry standards, and top suppliers in the market.

What Are Anchor Bolts?

Anchor bolts are custom-engineered fasteners that are embedded into concrete to anchor and support structural loads securely. One end of the bolt is fixed into the concrete (either during pouring or after curing), while the other end remains threaded for attaching structural parts like steel beams, columns, or equipment bases. Their main function is to provide stability against vertical loads, tension, and shear forces.

Different Types of Anchor Bolts

Depending on the application and environment, different types of anchor bolts are used. Here's a breakdown:

1. L-Type Anchor Bolts

Design: Bent in an “L” shape to prevent the bolt from pulling out of the concrete.

Common Use: Attaching steel columns, poles, and support structures.

2. J-Type Anchor Bolts

Design: Shaped like a “J”, offering high holding strength.

Common Use: Securing heavy equipment and building frames.

3. Wedge Anchors

Design: Mechanical anchors that expand upon tightening.

Common Use: Fastening items to solid concrete surfaces.

4. Sleeve Anchors

Design: Have an outer sleeve that expands.

Adaptability: Works in concrete, brick, or block.

Usage: Medium-duty applications like fencing or handrails.

5. Drop-In Anchors

Design: Features internal threads and is installed using a specialized setting tool.

Advantage: Flush finish after installation.

Usage: Ceilings, overhead lighting, or hanging applications.

6. Headed Anchor Bolts

Design: Feature a hex or square head, embedded into concrete for superior retention.

Common Use: Used in structural steel and concrete anchoring.

7. Swedged Anchor Bolts

Design: Have ridges or indentations along the shank to lock into concrete.

Common Use: Often used in precast concrete connections.

Materials Used in Anchor Bolt Manufacturing

Anchor bolts are manufactured using various materials based on strength, corrosion resistance, and environmental conditions:

Mild Steel (A36, A307)

Alloy Steel (A193 B7, etc.)

Stainless Steel (304, 316, 310) – Offers excellent corrosion resistance in marine or chemical environments.

Duplex & Super Duplex Steels

Corrosion-Resistant Alloys (Inconel, Monel, Hastelloy)

Non-Ferrous Metals (Brass, Bronze, Copper-Nickel)

Each material offers unique advantages based on mechanical strength, corrosion resistance, and temperature endurance.

Standards and Specifications for Anchor Bolts

Anchor bolts are installed in two primary ways:

ASTM F1554 – Covers grades 36, 55, and 105 for construction anchor bolts.

ASTM A307 – Specifies carbon steel bolts for general-purpose applications.

ASTM A193/A194 – For high-strength and high-temperature applications.

ASME B18 Series – Dimensional and mechanical specifications.

DIN, ISO, EN, BS – International standards for design and performance.

Applications of Anchor Bolts

To ensure durability in various environments, anchor bolts are often treated with protective finishes:

Commercial Construction: Fastening structural steel to concrete bases.

Industrial Plants: Mounting machinery, motors, and equipment.

Transportation Infrastructure: Supporting road signs, guardrails, and barriers.

Telecom & Energy Sectors: Anchoring towers, wind turbines, and generators.

Marine Industry – For piers, shipyards, and offshore platforms.

Their ability to hold structural loads and resist harsh environments makes them indispensable across sectors.

Anchor Bolt Installation Techniques

There are two primary methods of installing anchor bolts:

1. Cast-In-Place Installation

The bolt is positioned in the mold before concrete pouring.

Offers a permanent and highly secure anchoring method.

Suitable for new construction.

2. Post-Installed Anchoring

Installed into pre-hardened concrete using drilling equipment.

Includes mechanical (wedge, sleeve) and chemical (epoxy/resin) types.

Ideal for renovations or when retrofitting equipment.

Tips for Installation:

Always follow the manufacturer's recommended embedment depth.

Use calibrated torque wrenches for tightening.

Maintain proper edge distances to prevent concrete cracking.

Protective Coatings and Finishes

To ensure durability in various environments, anchor bolts are often treated with protective finishes:

Hot-Dip Galvanized

Zinc Electroplating

Teflon or Xylan Coating

Epoxy Powder Coating

Electropolished Finish (for stainless steel)

Choosing the right coating depends on the application environment, marine, industrial, or chemical exposure.

Leading Anchor Bolt Manufacturer: Ananka Group

Ananka Group is a top-tier manufacturer and global exporter of high-performance anchor bolts. With state-of-the-art production facilities and a skilled engineering team, Ananka offers anchor bolts in both standard and customized specifications.

Why Choose Ananka Group?

Precision manufacturing and testing.

Full range of materials and grades available.

Adherence to ASTM, ASME, ISO, and DIN standards.

Competitive pricing with timely global delivery.

Certifications: ISO, CE, and MTC (Material Test Certificates).

Ananka Group serves industries across the USA, UAE, UK, Germany, Australia, and other global markets.

Conclusion

Anchor bolts form the backbone of structural stability in construction and industrial engineering. Available in various types, materials, and standards, these bolts are foundational to structural integrity and safety. Choosing the right type of anchor bolt and working with a reliable manufacturer like Ananka Group ensures long-term performance and compliance with industry standards.

Frequently Asked Questions (FAQ)

Q1. Can anchor bolts be reused after removal?In most cases, especially with cast-in-place and epoxy anchors, reuse is not recommended. Mechanical anchors might be reused if undamaged, but it's not standard practice.

Q2. How do I choose the correct anchor bolt?Consider load type, material strength, environmental conditions, and the required embedment depth.

Q3. What is the difference between wedge and sleeve anchors?Wedge anchors are ideal for solid concrete and provide stronger holding, while sleeve anchors work better in masonry and less dense materials.

Q4. Which material offers the best corrosion resistance?Stainless steel 316 and special alloys like Monel or Inconel offer excellent resistance in corrosive or marine environments.

Silicon bronze fasteners have become a staple in various industrial, marine, and architectural applications due to their unique blend of strength, corrosion resistance, and aesthetic appeal. Comprising copper, silicon, and other alloying elements, these fasteners provide a balance of mechanical performance and long-lasting durability even in harsh environments.

In this blog, we’ll take an in-depth look into silicon bronze fasteners, including their composition, types, properties, applications, and why Ananka Group is a trusted manufacturer and supplier of these high-performance components.

What Are Silicon Bronze Fasteners?

Silicon bronze fasteners are made from a copper-based alloy consisting of approximately 95–97% copper and 2–4% silicon, supplemented by trace elements such as manganese, iron, and zinc. Depending on the exact composition, this alloy is categorized as UNS C65100 or UNS C65500.

These fasteners offer excellent resistance to corrosion, especially in marine and chemical environments, and maintain high tensile strength along with a distinctive bronze color.

Chemical Composition of Silicon Bronze (UNS C65500)

Mechanical Properties of Silicon Bronze Fasteners

These mechanical properties make silicon bronze an excellent choice for applications that demand durability, electrical conductivity, and resistance to corrosion.

Types of Silicon Bronze Fasteners

At Ananka Group, we manufacture and supply a full range of silicon bronze fasteners in various forms:

1. Silicon Bronze Bolts

Hex bolts

Carriage bolts

Shoulder bolts

Flange bolts

2. Silicon Bronze Nuts

Hex nuts

Heavy hex nuts

Nylon insert lock nuts

Wing nuts

3. Silicon Bronze Screws

Wood screws

Machine screws

Socket head cap screws

Self-tapping screws

4. Silicon Bronze Washers

Flat washers

Lock washers

Fender washers

5. Custom & Specialty Fasteners

Available in special sizes and configurations for client-specific applications.

Key Features & Advantages

Excellent Corrosion Resistance

Silicon bronze offers superior resistance to saltwater, chemicals, and industrial atmospheres, making it ideal for marine, coastal, and chemical plant environments.

High Strength & Durability

It delivers mechanical performance comparable to low carbon steel while maintaining non-magnetic and anti-corrosive properties.

Electrical & Thermal Conductivity

Its high copper content gives it good conductivity, suitable for electrical applications.

Aesthetic Appearance

The attractive bronze finish adds a decorative element for architectural and artistic applications.

Applications of Silicon Bronze Fasteners

Silicon bronze fasteners are widely used across industries that require strong, corrosion-resistant, and reliable fastening solutions.

Marine & Shipbuilding

Hull and deck installations

Saltwater piping systems

Wood and fiberglass assembly

Architectural & Restoration Work

Historic restoration of buildings

Decorative railings, domes, and panels

Chemical & Petrochemical Industries

Chemical processing tanks and pipelines

Acid-resistant structures

Electrical & Renewable Energy

Solar panel installations

Grounding and bonding systems

Woodworking

Decking, fencing, and boat construction

Prevents corrosion and staining of wood

Silicon Bronze vs. Other Fastener Materials

Silicon bronze offers a niche advantage where corrosion resistance, strength, and aesthetics are equally important.

Why Choose Ananka Group for Silicon Bronze Fasteners?

Ananka Group is a reliable manufacturer, supplier, and exporter of silicon bronze fasteners based in India, with a strong global presence. Our products are known for:

Precision manufacturing using international standards (ASTM, DIN, BS, ISO).

Custom fasteners tailored to specific client needs.

Quality assurance with thorough testing and certifications.

Efficient global supply chain ensuring timely deliveries across the USA, Europe, the Middle East, and the Asia-Pacific region.

Our comprehensive inventory of silicon bronze nuts, bolts, screws, washers, and custom fasteners is designed to meet the demands of diverse industries such as marine engineering, construction, chemical processing, and renewable energy.

Standard Specifications for Silicon Bronze Fasteners

Conclusion

Silicon bronze fasteners are an outstanding choice when you need corrosion resistance, mechanical strength, and visual appeal all in one. Their unique characteristics make them essential in marine, architectural, chemical, and many industrial applications.

Whether you're building a ship, restoring a historical monument, or securing electrical components, silicon bronze fasteners provide the reliability and durability your project needs.

Choose Ananka Group – your reliable partner for high-quality Silicon Bronze Fasteners, customized to meet global industry demands.

FAQs

Q1. Can silicon bronze fasteners be used effectively in marine environments?Yes, they are highly resistant to saltwater corrosion and ideal for marine use.

Q2. How do silicon bronze fasteners compare to stainless steel?They offer better resistance to corrosion in seawater and are non-magnetic, whereas stainless steel is stronger but may corrode over time in marine conditions.

Q3. Do silicon bronze fasteners patina over time?Yes, they develop a greenish or brown patina over time due to oxidation, which can enhance their visual appeal.

Q4. Can silicon bronze fasteners be safely used with pressure-treated wood?Yes, they are safe to use with pressure-treated or naturally acidic woods without causing staining or corrosion.