High-quality Duplex Nylon Insert Lock Nuts by Sunmach. ISO 9001 certified anti-loosening fasteners for high-vibration applications.
Sunmach manufactures and exports premium-quality Nylon Insert Lock Nuts (Nyloc Nuts) in stainless steel, duplex steel, super duplex, titanium, Inconel, Monel, Hastelloy, nickel alloys, and other exotic metals. Designed with a nylon insert that resists loosening from vibration and torque, these lock nuts provide secure, long-lasting fastening in demanding environments. Manufactured to ASTM, ASME, DIN, ISO, and ANSI standards, they offer excellent corrosion resistance, durability, and precision. Ideal for automotive, aerospace, marine, oil & gas, petrochemical, power generation, construction, and heavy engineering applications, Sunmach's nylon insert lock nuts are available in standard and custom specifications for reliable industrial fastening solutions worldwide.