Set Screws Socket Knurled Cup Point Fine Thread Alloy Thermal Black Oxide 5/16-24 x 1-1/4 delivers secure, precise fastener retention for a wide range of assemblies. Featuring a knurled cup point for positive seating and a fine thread for high load capacity in tight tolerances, this alloy thermally black-oxide set screw is built to perform in demanding environments.

Key features

• Size & Thread: 5/16-24 Fine thread
• Length: 1-1/4 in
• Point Style: Knurled cup point for superior grip and reduced marring
• Material & Finish: Alloy steel with thermal black oxide finish for corrosion resistance
• Drive Type: Socket (Allen) set screw
• Applications: Ideal for securing gears, pulleys, collars, and components on shafts where a low-profile, high-retention fastener is required

Why choose this set screw?

Designed for precision assemblies, the knurled cup point minimizes damage during installation and improves torque transfer. The thermally blackened alloy finish enhances wear resistance and helps blend the fastener into darker components, reducing visibility in exposed equipment.

Applications

Suitable for machinery, robotics, automotive, and instrumentation projects where reliable retention and a clean, low-profile appearance matter.

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.