Natural Nylon 6/6 Retaining Washer - 8.1 mm | 0.318 in; 16.3 mm | 0.640 in; Thickness 4 mm | 0.158 in;

Retaining Washer that lock and seal nuts bolts in position. Allows preliminary mounting of the bolt before screwing with a nut. The tapered design retains the screw prior to assembly. It cold forms and fully enters the pitch of the screw to provide sealing.