Upgraded bolts for 83-87 3G alternator swap April 06, 2006, 12:17:00 PM The bolt that comes with 3G alternators is weaker than the bolt it replaces. I ordered a set of bolts from McMaster to remedy this. Since I had to order 50 of the buggers, I'm selling some of the rest so you don't have to pay $12 for 1 fastener.Specs:Socket Cap ScrewStd. Head8mm x 1.25mm pitch (fine)12.935mm longBlack oxide coatedCost: $.17 + Shipping Quote Selected