Description
Monster Overview:
Combine strength and precision fit with Bulk 5/16"-24 Flat Head Socket Cap Screws from Monster Bolts. Made from premium alloy steel and finished with a thermal black oxide coating, these fasteners provide durability, clean appearance, and consistent performance. The 82° flat head design allows a fully flush mount—ideal for machinery, fixtures, and industrial assembly.
All Monster Bolts black oxide socket fasteners are RoHS compliant and ship quickly from our U.S. warehouse.
Monster Features:
- Thread: 5/16-24 UNF (Fine Thread) for tight-tolerance, high-strength applications.
- Material: High-strength alloy steel with a thermal black oxide finish (mild protective layer, clean matte look).
- Drive: 3/16″ hex recess (Allen). Hex keys available here.
- Head Style: 82° Flat Head for a flush, professional installation.
- Applications: Machinery, metal fabrication, industrial equipment, and precision mechanical assemblies.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | 5/16″ |
| Thread Size | 5/16-24 UNF (Fine Thread) |
| Drive Size | 3/16″ Hex (Allen) |
| Head Type | 82° Flat Head Socket Cap Screw (FHCS) |
| Material | Alloy Steel |
| Finish | Thermal Black Oxide (mild protective layer) |
| Standards | ASME B18.3 / IFI-111 / ASTM A574 |
| Compliance | All black oxide socket fasteners are fully RoHS compliant |
| Origin | Ships from U.S. Warehouse |
More Monster Bolts:
Matching Hardware: Complete your assembly with Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers.
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Buy with confidence — fast U.S. shipping and Monster Bolts quality back every order.