Excel
Retro Guru
am a bit stumped and was hoping someone could advise as I'm currently rebuilding a 1960's frame that is missing its integral seatbolt (screws straight into the fastback seat cluster without the need for a nut) my question is that a 6mm is just a bit too narrow, 8mm is too big leaving me to think it must have an Imperial thread, I have tried offering a standard seat bolt to see if that screws in but that is also too big so I was wondering were these integral seat bolt threads standardised back then or is a trial and error process in trying to find the right threaded bolt? (M7 bolts don't appear to be available option)
would appreciate any help
Griff
would appreciate any help
Griff