Triumph Primary Level Plug(s) M6-1.0 x 12mm for Wassell Primary Covers PN# TBS-DS57-M

This metric bolt is specifically intended for use on the Wassell brand primary chaincase covers that are tapped with M6-1.0 metric threads.

The M6-1.0 x 12mm bolt replaces the DS57 1/4-26 TPI CEI bolt used on original factory early unit Triumph 650 engines. It is offered specifically for the Wassell primary chaincase covers.

The metric bolt is threaded into the oil level hole on the Wassell aftermarket primary chaincase cover and uses a copper sealing washer under head. The class 8.8 bolt is zinc plated and is fastened with a 10mm spanner or socket.