Did not start this thread to make money , these screws are the same as the original screws apart from the thread NO the thread is 1/4"unf the head of the screw is 1/2"Dia. the only difference is i have used a 4mm hex broach , so you use 4mm allan key ! how much would you pay for 1 1/2 hours work ? So what have you ? I have Girvin ,AMP ,USE SUB and Cannondale lefty ,any parts up for swops ? also looking to finish a GT Zaskar with the AMP F3 , also making parts for the AMP F2 . or as i say to other people whats to worth to you ? :?: