Description
Monster Overview:
Fix your project right the first time with Bulk 1/2-13 Button Head Socket Cap Screws from Monster Bolts. Manufactured from ASTM A574 Alloy Steel, these screws deliver exceptional strength and reliability in demanding mechanical and structural applications. The thermal black oxide + oil finish provides a durable, low-glare appearance with mild corrosion protection.
Designed to meet ASME B18.3 and IFI-111 standards, these coarse-thread (UNC) button heads offer excellent clamping strength with a sleek, rounded profile ideal for finished surfaces. All Monster Bolts black oxide fasteners are fully RoHS compliant for environmentally responsible performance.
Monster Features:
- Material: High-strength alloy steel, manufactured to ASTM A574 standards (12.9 metric equivalent).
- Finish: Thermal black oxide + oil for a uniform, matte-black finish and mild corrosion resistance.
- Thread: 1/2"-13 UNC – Coarse Thread (Unified National Coarse).
- Drive: 5/16" Hex Key (Allen) Drive – Available here if you need a fresh one!
- Head Type: Button Head – low-profile rounded design ideal for visible or clearance-limited assemblies.
- Compliance: All Monster Bolts black oxide socket fasteners are RoHS compliant.
Monster Specifications:
| Attribute | Specification |
|---|---|
| Diameter | 1/2" |
| Thread Size | 1/2"-13 UNC (Coarse Thread) |
| Drive Size | 5/16" Hex Key |
| Head Style | Button Head Socket Cap Screw |
| Material | Alloy Steel – ASTM A574 (12.9 Equivalent) |
| Finish | Thermal Black Oxide + Oil |
| Tensile Strength | 180,000 psi (≤ 1/2"), 170,000 psi (> 1/2") |
| Hardness | Rockwell C39 minimum |
| Standards | ASME B18.3 / IFI-111 |
Measurement Note:
Length is measured from under the head to the tip of the screw. Button heads are not included in the overall measurement.
Matching Products:
- Matching Nuts: Bulk U.S. Inch Nuts
- Matching Washers: Bulk U.S. Inch Washers
- Hex Keys: 5/16" Allen Key – Available here
Order Yours Today:
Buy with confidence! Every order from Monster Bolts is backed by our commitment to quality, fast shipping, and customer satisfaction.