Description
Monster Overview:
Fix your project right the first time with Bulk 5/16-24 Socket Head Cap Screws from Monster Bolts. Manufactured from premium alloy steel and finished with a thermal black oxide coating for a clean, uniform appearance and mild corrosion protection, these fine-thread SHCS deliver compact head geometry, precise torque control, and dependable strength for machinery, tooling, and industrial assemblies.
All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.S. warehouse.
Monster Features:
- Fine Thread: 5/16-24 UNF for improved tensile engagement and smooth adjustment.
- Material: High-strength alloy steel for reliable clamping force in demanding applications.
- Finish: Thermal black oxide provides a sleek, consistent look with light rust resistance.
- Drive: 1/4″ Hex (Allen) for secure tool engagement and accurate torque. Hex keys available here.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | 5/16″ (0.3125″) |
| Thread Size | 5/16-24 UNF (Fine Thread) |
| Drive Size | 1/4″ Hex |
| Head Type | Socket Head Cap Screw (SHCS) |
| Material | Alloy Steel |
| Finish | Thermal Black Oxide |
| Standards | ASME B18.3 / IFI-111 / ASTM A574 |
| Compliance | RoHS Compliant |
| Origin | Ships from U.S. Warehouse |
More Monster Bolts:
Matching Nuts & Washers: Complete your fine-thread assembly with compatible hardware from Monster Bolts. Pair these 5/16-24 screws with our Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a fully matched fastening solution.
Order Yours Today and Experience the Monster Bolts Difference!
Buy with confidence! Every Monster Bolts order is backed by our commitment to quality, fast shipping, and outstanding customer support.



