Description
Monster Overview:
Fix your project right the first time with Bulk 1-3/8"-6 Socket Head Cap Screws from Monster Bolts. These heavy-duty, large-diameter fasteners are made from premium alloy steel and finished with a thermal black oxide coating that provides a smooth matte appearance and mild corrosion resistance. Perfect for high-load mechanical, structural, and industrial applications that demand maximum clamping strength and durability.
All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.S. warehouse.
Monster Features:
- Thread Type: 1-3/8"-6 UNC (Coarse Thread) for superior grip and strong engagement in tapped holes or matching nuts.
- Material: High-strength alloy steel provides exceptional tensile and torque performance.
- Finish: Thermal black oxide offers a professional low-glare finish with mild corrosion protection.
- Drive: 1″ Hex (Allen) for secure torque transfer and precise tightening. Hex keys available here.
Monster Specifications:
| Specification | Details |
|---|---|
| Diameter | 1-3/8″ (1.3750″) |
| Thread Size | 1-3/8"-6 UNC (Coarse Thread) |
| Drive Size | 1″ Hex |
| Head Type | Socket Head Cap Screw (SHCS) |
| Material | Alloy Steel |
| Finish | Thermal Black Oxide |
| Standards | ASME B18.3 / IFI-111 / ASTM A574 |
| Compliance | RoHS Compliant |
| Origin | Ships from U.S. Warehouse |
More Monster Bolts:
Matching Nuts & Washers: Complete your coarse-thread assembly with compatible hardware from Monster Bolts. Pair these 1-3/8"-6 screws with our Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a fully matched fastening solution.
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