You are buying twenty five (25) NEW fasteners. They are 5/16-18 x 1" long grip lock black phosphate & oil flange washer indented hex head bolts for Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac and GMC cars and trucks.

These grade 2 black phosphate & oil steel bolts have a 1/2" indented hex head with a 13/16" diameter grip lock flange and dog point.

These bolts may have a light coating of oil on them from the manufacturer.  

Please note that these bolts may not be for some of the compatibility applications listed as we do not have all the body codes. Please compare your application to the photos and the sizes that we have provided.