Description
Monster Overview:
Proudly manufactured in the USA, these Bulk 5/8"-11 Socket Head Cap Screws are made from premium alloy steel and finished with a durable thermal black oxide coating. The coarse UNC thread ensures fast installation, reliable grip strength, and maximum durability in industrial environments.
All Monster Bolts USA-made black oxide socket fasteners are fully RoHS compliant and ship quickly from our U.S. warehouse.
Monster Features:
- Thread: 5/8"-11 UNC (Coarse Thread) — ideal for heavy machinery and structural applications.
- Material: Alloy Steel per ASTM A574 with thermal black oxide finish.
- Drive: 1/2″ Hex (Allen). Hex keys available here.
- Head: Socket Head Cap Screw (SHCS) — high-strength and compact profile for torque applications.
- Applications: Equipment assembly, tooling, heavy-duty repair, and general manufacturing.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | 5/8" |
| Thread Size | 5/8"-11 UNC (Coarse Thread) |
| Drive Size | 1/2″ Hex (Allen) |
| Head Type | Socket Head Cap Screw (SHCS) |
| Material / Finish | Alloy Steel, Thermal Black Oxide |
| Standards | ASME B18.3 / IFI-111 / ASTM A574 |
| Compliance | RoHS Compliant |
| Origin | USA |
More Monster Bolts:
Matching Hardware: Pair these 5/8"-11 screws with Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a complete fastening solution.
Order Yours Today!
Choose Monster Bolts for premium USA-made socket head cap screws — built for high torque, long life, and reliable performance in every bulk carton.




