Plated steel Grade 5 nylock nuts with nylon insert provide a right-hand UNF thread friction grip. Available in Full Height or Half Height, in moderate pack quantities suitable for most projects. Locking mechanism: Nylon insert (UNF right-hand thread) Styles: Full Height and Half Height Thread sizes: 10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20, 5/8-18, 3/4-16 Primary use: Shake-proof fastening in high-vibration chassis and motorsport applications Full Height – Full Strength A Full Height Nylock Nut may be used in either tension or shear applications. The nylon insert serves as a retention device for the fastener, providing reliable locking without conventional locking washers. Half Height – Save Weight The Half Height Nylock Nut is typically selected for shear load applications. The thin design provides a limited number of threads, resulting in less strength when placed in tension. The nylon insert serves as a retention device for the fastener.