You can utilize these pieces of hardware in solid or hollow surfaces

3/4-10 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (75)

Proof Load:

5/16-18 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

5/8 x 4 Hex Lag Screw 18-8 SS

3/4-10 x 4 A325 Type 1 Heavy Hex Bolt Plain (50) 1/2-20 Grade 8 Hex Cap Screws Yellow Zinc Plated - Domestic USA You can utilize these pieces3 4 10 x 4 A325 Type 1 Heavy Hex Bolt Plain (80) . 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.