These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes sixteen (16) 3/8 inch-16 x 1-1/4 inch bolts & washers
Features:
- Zinc plated Grade 5 steel
- Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds