These custom grade 8 countersunk hex flange bolts were manufactured for our automotive after market manufacturing customer with zinc yellow finish. Partial 1/2-13 thread was rolled and the length under the hex (inclusive of the countersunk portion) was set to 2-3/4". Full certs were made available with the parts.
.JPG "Custom Grade 8 Automotive Countersunk Hex Flange Bolt Manufacturers")
