Brand new factory oem body bolts.
Direct replacement GM Part# 407217 and 1564180.
Sold as a set of (10).
These are the EXACT bolts that GM used all over your car/truck, not generic hardware.
Fastener Specifications:
Grade: 9.8
Thread: 3/8-16 (standard)
Length: 1 1/2"
Head: 9/16" Indented Hex Head with 1 1/8" Outside Diameter Loose Washer
Finish: Black Phosphate
The most common place these are used is on the front and rear bumpers. Depending on your vehicle, they are also widely used on other body panels, under the hood, chassis and the interior.
DISCLAIMER: These are largely used on GM cars up to 1977 and full size trucks up to 1987. Most, but not all, converted to both metric and standard in 1978 and full metric in 1981. Please double check your application prior to your purchase to avoid unwanted return shipping charges.