Features a washer faced smaller than standard hex head that's perfect for getting into tight spaces
Designed to withstand the abuse of red hot exhaust ports and prevent leaks created by under tightened header bolts
Compatible with big block Chevys Fords and Buicks
Three eighths coarse threads .750 inch long
Set of 16
Mr. Gasket Stainless Steel Header Bolts feature a washer-faced, smaller-than-standard hex head that's perfect for getting into tight spaces. Designed to withstand the abuse of red-hot exhaust ports and prevent leaks created by under-tightened header bolts, they're made of corrosion-resistant stainless steel, have 3/8 coarse threads, are compatible with big-block Chevys, Fords, and Buicks, and come in sets of 16.