Designed primarily for use with square bolts

3/8-24 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (900)

1/4 x 2 Mushroom Spike 316 SS (100)

These carbon steel cap nuts are composed of a hex nut and a top cap manufactured from 1006 to 1010 carbon steel

9/16-12 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

1-8 x 5 1/2 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized (30) 1/2 Hex Lag Screws Zinc Plated Designed primarily for use with1 8 x 5 1 2 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized (30) . Heavy Hex A325 structural bolts are designed for steel to steel structural connections. For this reason, they are typically very short. The A325 and A490 specifications are not intended for general applications, including anchor bolts. Free certs available on request.