Description
Monster Overview:
Fix your project right the first time with Bulk #3-56 Socket Head Cap Screws in 18-8 stainless steel. These UNF fine-thread miniature fasteners deliver precise engagement, clean cosmetics, and dependable corrosion resistance for electronics, instruments, robotics, and precision fixtures.
Monster Features:
- Thread: #3-56 UNF (Fine Thread) for precision fit, secure tightening, and smooth adjustment.
 - Material: 18-8 (A2) stainless steel for everyday corrosion resistance and a clean finish.
 - Head / Drive: Socket Head Cap Screw (SHCS) with 5/64″ hex (Allen). Hex keys available here.
 - Applications: Electronics, optics, test fixtures, small mechanisms, and light machinery.
 
Monster Specifications:
| Specification | Details | 
|---|---|
| Diameter | #3 (0.0990″) | 
| Thread Size | #3-56 UNF (Fine Thread) | 
| Drive Size | 5/64″ 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 #3-56 fine-thread 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.



