For covering projecting threads, in Stainless Steel and Nickel plated

For joining two externally threaded parts or threaded rod

Grade 2, Grade 5, Grade 8 and Stainless Steel

Class 8 and Class 10, DIN 934

Serrated to significantly reduce loosening due to vibration

A563 Grade A and A194 2H for structural applications

For use with a secondary nut to reduce loosening

Plain, Zinc and Galvanized

Pre-assembled with external tooth lockwasher

Nylon filled collar withstands extreme vibration without loosening

Designed for use with machine screws

For use use with drilled shank fasteners and cotter pins

For use in wood, particle board or plastic, in both 3-Prong and 4-Prong styles

For finger tightening and untightening