Description
Monster Overview:
Fix your project right the first time with Bulk 3/8-16 Button Head Socket Cap Screws from Monster Bolts. These heavy-duty alloy steel fasteners are designed for strength, precision, and durability. Featuring a thermal black oxide + oil finish, they provide a sleek black appearance with mild corrosion protection while maintaining the close dimensional tolerances required by high-performance applications.
Engineered to ASTM A574 standards (12.9 metric equivalent) and fully RoHS compliant, these coarse-thread socket screws are perfect for mechanical assemblies, robotics, automation, and industrial machinery.
Monster Features:
- Material: Premium alloy steel per ASTM A574 (12.9 metric equivalent).
- Finish: Thermal black oxide + oil for a low-glare, uniform appearance and mild corrosion resistance.
- Thread: 3/8"-16 UNC – Coarse Thread (Unified National Coarse).
- Drive: 7/32" Hex Key (Allen) Drive – Available here if you need a fresh one!
- Head Type: Button Head for low-profile, aesthetic fastenings where appearance matters.
- Compliance: RoHS compliant and manufactured to IFI-111 / ASME B18.3 specifications.
Monster Specifications:
| Attribute | Specification |
|---|---|
| Diameter | 3/8" |
| Thread Size | 3/8"-16 UNC (Coarse Thread) |
| Drive Size | 7/32" 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: 7/32" 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.