Bolt size for C5 brake adapter plates? - ZR-1 Net Registry Forums

GSJoe · 07-28-2012

My friend and I are about to upgrade his 91 ZR-1 brakes to C5 calipers, rotors, etc. He purchased some used calipers and caliper brackets which are now clean and ready to install. He also got some new adapter brackets, but they did not come with hardware. My question, then, is what size bolt do we get to hold the adapters to the spindles? It looks like the adapters are drilled and tapped for M14X2.0x?? Yup, we don't know the length. From pictures I've seen, these bolts are usually allen head and grade 10.9. Before I go to the friendly nut, screw and bolt store in our area, however, I need to know how long should the bolts be that I ask for. Please help if you know. Thanks.

07-28-2012	#1
GSJoe Join Date: Jul 2011 Location: Charlotte, NC Posts: 135	Bolt size for C5 brake adapter plates? My friend and I are about to upgrade his 91 ZR-1 brakes to C5 calipers, rotors, etc. He purchased some used calipers and caliper brackets which are now clean and ready to install. He also got some new adapter brackets, but they did not come with hardware. My question, then, is what size bolt do we get to hold the adapters to the spindles? It looks like the adapters are drilled and tapped for M14X2.0x?? Yup, we don't know the length. From pictures I've seen, these bolts are usually allen head and grade 10.9. Before I go to the friendly nut, screw and bolt store in our area, however, I need to know how long should the bolts be that I ask for. Please help if you know. Thanks.