The thin plain washer is correct for use on the rocker box mounting studs on most unit-construction Triumph twins. Sold individually or multiple quantity discounts.
The plain thin washer is 1/4″ ID, 1/2″ OD, and is .031″ thick. It is utilized on 1959-1974 500 models along with 1960-1982 650 and 750 models.
The washer is fitted under the head of the rocker box stud nut to prevent friction from the nut tightening against the alloy casting of the cylinder head.
The washer is fitted under the head of the rocker box stud nut to prevent friction from the nut tightening against the alloy casting of the cylinder head.