Description
Monster Overview:
Fix your project right the first time with Bulk 5/16-18 Socket Head Cap Screws in 18-8 stainless steel. The UNC coarse thread delivers strong engagement, while stainless construction provides dependable corrosion resistance and a clean professional finish for marine, automotive, industrial, and MRO use.
Monster Features:
- Thread: 5/16-18 UNC (Coarse Thread) for robust holding power and easy assembly.
- Material: 18-8 (A2) stainless steel for everyday corrosion resistance and durability.
- Head / Drive: Socket Head Cap Screw (SHCS) with 1/4″ hex (Allen). Hex keys available here.
- Applications: Marine hardware, machinery, jigs & fixtures, robotics, and general fabrication.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | 5/16″ (0.3125″) |
| Thread Size | 5/16-18 UNC (Coarse Thread) |
| Drive Size | 1/4″ Hex (Allen) |
| Head Type | Socket Head Cap Screw (SHCS) |
| Material | 18-8 Stainless Steel (A2) |
| Finish | Passivated Stainless (as produced) |
| Standards | ASTM F837 / ASME B18.3 |
| Origin | Ships from U.S. Warehouse |
More Monster Bolts:
Matching Hardware: Pair these 5/16-18 screws with our Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a complete fastening solution.
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Buy with confidence—fast U.S. shipping and Monster Bolts quality back every order.