[100 PKG] Socket Head Cap Screws Fine Thread Alloy Steel Thermal Black Oxide 6-40 X 3/8

Engineered for reliability in metalworking, engineering, and precision assemblies, this Socket Head Cap Screw delivers strength, accuracy, and a low-profile finish. Crafted from high-grade alloy steel and finished with thermal black oxide, it combines durability with corrosion resistance and a sleek appearance. The fine-thread design, size 6-40, and length of 3/8 inch make it ideal for applications where precise engagement and load transfer are essential.

Key specifications

• Thread size: 6-40 (UNF, fine thread)
• Length: 3/8 inch (9.525 mm)
• Head type: Socket Head Cap Screw
• Drive: Hex socket (Allen key compatible)
• Material: Alloy steel
• Finish: Thermal black oxide
• Usage: Fine-thread fastener for precise assemblies

Benefits of the thermal black oxide finish

The thermal black oxide coating provides a durable, low-gloss finish that reduces glare and offers mild corrosion resistance. It also helps minimize galling and eases lubrication for smoother, reliable operation in demanding environments.

Applications

• Automotive and industrial hardware
• Machinery, equipment, and robotics assemblies
• Electronics enclosures and precision metalwork
• DIY projects requiring a compact, high-strength fastener

Installation tips

• Use a standard hex key (Allen wrench) sized for 6-40 fasteners to tighten securely.
• Lubricate threads if required by your application to improve assembly torque and reduce wear.
• Consult your component specifications for appropriate torque values to avoid over-tightening.

Elevate your projects with these reliable socket head cap screws. Add to cart now and secure a precise, durable fastener solution for your next build.