6086MRG Mr Gasket OIL PAN,BOLTS BB CHEV

OIL PAN,BOLTS BB CHEV Mr. Gasket Oil Pan Bolts Fits Big Block Chevrolet & Pontiac V8 Special self locking oil pan bolts that use a smaller-than-standard hex head for tight spaces. Because of the hex flange head design, it will not fall back into the socket wrench, allowing for easier installation. Special under head serrations prevent loosening and the wide flange head distributes uniform clamping pressure for an better gasket seal. Includes two 1/4 inch-20 x 1/2 inch and (20) 5/16 inch-18 x 3/4 inch zinc plated, grade 5 bolts.