Cap Screws Flat Socket Alloy Thermal Black Oxide 1/4-20 X 5/8

Engineered for strength and reliability, these flat socket cap screws are manufactured from high-grade alloy steel and finished with a thermal black oxide coating for added corrosion resistance and a stealth, professional look. The 1/4-20 threading is a common standard in many industries, and the 5/8 inch length provides a secure bite in a variety of assemblies.

• Size and Thread: 1/4-20 UNC threaded cap screw
• Length: 5/8 inches
• Material: Alloy steel for high strength
• Finish: Thermal black oxide finish for corrosion resistance and reduced glare
• Drive Type: Hex socket (Allen) drive for a clean, flush install
• Head Style: Flat socket cap screw

Designed for precision and durability, these screws are ideal for assembling machinery, automotive components, and equipment housings where a low-profile, secure fastening is required. The thermal black oxide finish helps resist wear and provides a uniform appearance across assemblies.

Why choose these cap screws?

• Consistent and repeatable torque performance
• Good fatigue resistance and strength for demanding applications
• Corrosion protection in moderate environments