Premium Duplex Cap Nuts & Stainless Steel Cap Nuts for industrial applications
Sunmach manufactures and exports high-quality Cap Nuts (Acorn Nuts) in stainless steel, duplex steel, super duplex, titanium, Inconel, Monel, Hastelloy, nickel alloys, and other exotic metals. Featuring a domed closed-end design, cap nuts protect bolt threads from damage, corrosion, and environmental exposure while providing a clean, finished appearance. Manufactured to international ASTM, ASME, DIN, ISO, and ANSI standards, these corrosion-resistant cap nuts are widely used in automotive, marine, construction, oil & gas, chemical processing, power generation, and industrial engineering applications. Discover durable, precision-engineered cap nuts available in standard and custom specifications for reliable fastening solutions worldwide.
