Description
 
Monster Overview:
Fix your project right the first time with Bulk 9/16-12 Socket Head Cap Screws from Monster Bolts. Manufactured from high-strength alloy steel and finished with a thermal black oxide coating, these coarse-thread SHCS provide reliable strength, consistent torque, and a sleek black finish with light corrosion resistance. Ideal for use in mechanical, structural, and heavy-duty industrial applications.
All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.S. warehouse. Trusted for their quality, consistency, and performance in demanding environments.
Monster Features:
- High Strength: Alloy steel delivers exceptional tensile and torque strength for industrial-grade assemblies.
- Finish: Thermal black oxide offers a clean, matte black appearance with mild corrosion protection.
- Thread Type: 9/16-12 UNC (Coarse Thread) for standard assembly use and strong clamping performance.
- Drive: 7/16″ Hex (Allen) drive provides secure engagement and precise torque control. Hex keys available here.
Monster Specifications:
| Specification | Details | 
|---|---|
| Diameter | 9/16″ (0.5625″) | 
| Thread Size | 9/16-12 UNC (Coarse Thread) | 
| Drive Size | 7/16″ 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 9/16-12 screws with our Bulk U.S. Inch Nuts and Bulk U.S. Inch Washers for a fully matched fastening solution.
Order Yours Today and Experience the Monster Bolts Difference!
Buy with confidence! Every Monster Bolts order is backed by our commitment to quality, fast shipping, and outstanding customer support.



