Split Spring Lock Washers

A Spring Lock Washer is a hardened coil wire having a slightly trapezoidal section that enables the washer to coil slightly, enough to flick up in opposing directions, at both ends. The idea is that the coil’s ends slightly dent the material to be fastened and the fastening nut. This dent acts as a little stopper to increase the force needed to undo the nut.

Spring/ Lock Washer Materials

A1 Stainless Steel

A4 316 Stainless Steel (Marine)

BZP/ Steel

Phosphor Bronze (Used with Brass Fasteners)