Description
Monster Overview:
Proudly Made in the USA, these Bulk #4-40 Socket Head Cap Screws are crafted from high-strength alloy steel and finished with a thermal black oxide coating. Engineered for consistent drive engagement and durability, these fine-thread UNF screws are ideal for electronics, robotics, and precision assemblies.
All Monster Bolts USA-made black oxide socket fasteners are fully RoHS compliant and ship fast from our U.S. warehouse.
Monster Features:
- Origin: Made in the USA for guaranteed consistency and quality control.
- Material: Alloy Steel per ASTM A574 with thermal black oxide finish.
- Thread: #4-40 UNF (Fine Thread) — precision fit with excellent clamp retention.
- Drive: 3/32″ Hex (Allen). Hex keys available here.
- Applications: Robotics, aerospace, instrument enclosures, and mechanical prototyping.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | #4 |
| Thread Size | #4-40 UNF (Fine Thread) |
| Drive Size | 3/32″ Hex (Allen) |
| Head Type | Socket Head Cap Screw (SHCS) |
| Material | Alloy Steel (ASTM A574) |
| Finish | Thermal Black Oxide |
| Origin | USA |
| Compliance | RoHS Compliant |
More Monster Bolts:
Matching Hardware: Pair these #4-40 fasteners with Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a complete fastening solution.
Order Yours Today!
Build better with Monster Bolts USA-made Socket Head Cap Screws — precision-engineered, RoHS compliant, and shipped fast from our U.S. warehouse.