Specs:14-1.5(set of 32pcs), 22mm(7/8")hex drive--1.12" tall--1.06"(27mm) OD--cone/conical seat(tapered)
For Most Chevy(Chevrolet)/GM: check yourself or use system filter(enter a vehicle to maker sure this part fits), some range in description as reference!
Factory Replacement Part#:9591772 and 9595175
Quality: CNC machined to keep clear and smooth thread pitch, no mess up or destroy your studs/bolts! Heavy duty zinc alloy steel(anti-rusting chrome)
After-Sales: 12month warranty and free exchange if any problems! contact us with your detail and reply in 24hrs