Description
Monster Overview:
Fix your project right the first time with Bulk #3-48 Flat Head Socket Cap Screws from Monster Bolts. Made from high-strength alloy steel and finished with a thermal black oxide coating, these precision fasteners provide a flush, low-profile fit ideal for electronics, instrumentation, and small-scale assemblies.
The 82° flat head design allows the screw to sit flush for a smooth, professional finish while the black oxide coating offers a clean appearance and mild layer of protection. All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.S. warehouse.
Monster Features:
- Thread: #3-48 UNC (Coarse Thread) for secure fastening in small assemblies.
- Material: Alloy steel with a durable thermal black oxide finish (mild protective layer, smooth look).
- Drive: 1/16″ hex recess (Allen). Hex keys available here.
- Head Style: 82° Flat Head for flush-mounted applications.
- Applications: Electronics, robotics, optical equipment, and miniature mechanical devices.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | #3 (0.0990″) |
| Thread Size | #3-48 UNC (Coarse Thread) |
| Drive Size | 1/16″ 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: Pair these #3-48 screws with our Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a complete fastening solution.
Order Yours Today!
Buy with confidence — fast U.S. shipping and Monster Bolts quality back every order.




