The common 1/4-28 TPI UNF bolt is used in many applications on various British motorcycles from 1969-onward, such as license bracket mounts, seat hinges, and fender stays.
This N.O.S. bolt is utilized in makes/models from 1969-1982: BSA A65, Triumph 500, 650, 750 models and Norton Commandos.
The bolt measures 1/4″ x 1/2″ under head and has 28 TPI UNF threads. The head of the bolt has the correct GSF-S markings as used from the factory. There are (6) bolts in this kit.
The bolt is used in different applications where a small fastener is called for, such as fender stay mounting, coil tray bracket mounting, seat hinges, and license plate bracket mounting.
The bolt is threaded into a nut or a boss and often is used with a flat or spring washer under head.