Description
Monster Overview:
Strength and reliability meet clean design with Bulk #12-24 Flat Head Socket Cap Screws from Monster Bolts. Crafted from premium alloy steel and finished with a thermal black oxide coating, these screws deliver consistent torque performance and a flush, professional look. Ideal for mechanical assemblies, industrial equipment, and metal fabrication projects.
All Monster Bolts black oxide socket fasteners are RoHS compliant and ship directly from our U.S. warehouse.
Monster Features:
- Thread: #12-24 UNC (Coarse Thread) for secure fastening and easy installation.
- Material: High-strength alloy steel with thermal black oxide finish (mild protective coating, matte appearance).
- Drive: 1/8″ hex recess (Allen). Hex keys available here.
- Head Style: 82° Flat Head for a fully flush surface.
- Applications: Mechanical assemblies, equipment repair, metal fabrication, and industrial use.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | #12 (0.2160″) |
| Thread Size | #12-24 UNC (Coarse Thread) |
| Drive Size | 1/8″ 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: Pair these #12-24 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.




