Product Overview: Black Luster Hex Nylon Insert Lock Nuts are reusable self-locking nuts that allow for infinite adjustments. They securely hold the mating part in any position without damaging threads and resist loosening from vibration.

Coating and Resistance: The Black Luster Coating offers superior corrosion resistance compared to black oxide and zinc plated finishes. It provides excellent weatherability and chemical resistance while maintaining functional thread engagement.

Performance Specifications: These nuts can withstand a salt spray test for 500 hours as per ASTM B117 standards. They operate effectively within a temperature range of -40°F to +400°F.

Material: The hex nut is made from low carbon steel.