Industrial Nylon Insert Jam Lock Nut Grade 2 USS Coarse Zinc 1/4-20 Nylon Insert Lock Nut

The Wurth Grade 2 Nylon Insert Jam Lock Nut is a thin-profile locking fastener that secures threaded assemblies in industrial, automotive, construction, and maintenance applications, featuring a zinc-plated steel body with an integrated nylon locking insert and 1/4-20 USS coarse threads. Its low-height design and Nylock action resist loosening from vibration, making it ideal as a secondary locking nut or in confined spaces where standard-height lock nuts cannot fit in machinery, automotive systems, industrial equipment, electrical enclosures, and fabrication projects. The nut finishes in clear zinc plating, with across-flats of 7/16" typical for 1/4-20 jam nuts and ANSI B18.2.2 compatibility, providing durable fastening for general-purpose industrial use.