5/16-18 x 5 1/2" Hex Head Bolt, A307 Grade A, Plain Finish (no rust protection)
BL142-9442
https://www.fastenermart.com/mm5/graphics/00000001/S013900.gif
7.49
96.37
2
7.49
25
pcs
96.37
300.00
pcs
Also known as:
Hex Head Cap Screws are generally 1/4" and larger in diameter. Short lengths are fully threaded and long lengths are partially threaded; long fully threaded Hex Bolts are available and also called Tap Bolts. Hot Dip Galvanized Hex Nuts, which are tapped oversize, must be used with Hot Dip Galvanized Hex Head Cap Screws. Measure length from under the head.