DrillSpot 5/32" Black Steel Schnorr Washer

These safety washers are in the form of a disc spring which is serrated on both sides and of trapezoidal cross section. Their diameters are matched to screw dimensions. The outer diameter of the washer is matched to the head diameter of pan-head and hexagon socket head cap screws. As a result, the safety washer can be used with practically any screw and bolt type, including those with rescessed heads. The only exception are countersunk screws