DB MkIII Rear Brake Drum bolt, 5/16" bsf x 11/16" long, cross drilled for lockwire, machined from solid in EN8, plated silver & de-embrittled to provide a quality bolt.

This bolt is also used when fitting new front & rear hubs to earlier models that aren't fitted with studs.

Photo is before plating & de-embrittling.