5/16-24 X 1/2" Socket Cap Screws | Button Head Hex Socket Drive | Steel Black Oxide (100 / Pkg.)

Cap Screws Button Socket Fine Thread Steel Black Oxide 5/16-24 X 1/2 are precision-engineered fasteners designed for secure mounting with a clean, flush appearance in machinery, electronics, automotive, and general mechanical assemblies.

These cap screws feature a button-style socket head that sits neatly in recessed counterbores, offering a low-profile profile and smooth aesthetic for projects where visual finish matters. The fine thread 5/16-24 provides superior clamping force and precise adjustment, ideal for assemblies demanding accuracy and repeatable torque values.

Key features

• Material: Steel for strength and durability
• Finish: Black oxide for corrosion resistance and a sleek look
• Thread: Fine thread 5/16-24 UNF for high-precision fastening
• Length: 1/2 inch overall length
• Head style: Button socket head for a flush, low-profile installation
• Drive type: Hex/Allen drive for easy tightening with common tools

Specifications at a glance

• Size: 5/16-24
• Length: 1/2 inch
• Material: Steel
• Finish: Black oxide
• Head: Button socket cap screw

Whether you are outfitting a precision machine, rebuilding a power tool, or completing a hardware project, these cap screws deliver reliable performance, repeatable torque, and a clean finish. Add them to your hardware supply for fast, secure assemblies that resist loosening and wear over time.