Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 5-40 X 3/4 is a high-precision fastener engineered for secure positioning, reliable clamping, and long-lasting performance in fixtures, tooling, and machinery. The knurled grip on the socket screw provides effortless adjustments and improved handling during installation, while the cup point design delivers positive engagement on soft materials to prevent creeping under vibration.

Manufactured from sturdy alloy steel and finished in thermal black oxide, this set screw combines strength with corrosion resistance and a low-reflective surface ideal for environments where glare must be minimized.

• Thread size: 5-40 UNC
• Length: 3/4 inch
• Material: Alloy steel
• Finish: Thermal black oxide
• Drive: Socket (internal hex)
• Head style: Cup point; knurled for enhanced grip
• Hardness/Treatment: Heat-treated for improved wear resistance
• Applications: Positioning, locking, and alignment in fixtures, jigs, and machinery

Tip: For best results, pair with appropriate mating components and avoid over-tightening to preserve seating and material integrity.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State ofCalifornia to cause cancer and birth defects or other reproductive harm. For more information go tohttps://www.P65Warnings.ca.gov.