Get a secure, vibration-resistant fastening solution with our Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 5-40 X 1/4. Designed for machines and assemblies that demand precise alignment and dependable holding power, these socket set screws blend strength, durability, and corrosion resistance in a compact, low-profile profile.

Key features

• Drive type: Socket (internal hex) for a clean, recessed installation.
• Point design: Cup point delivers positive seating with reduced risk of marring the mating surface.
• Material and finish: Alloy steel with a thermal black oxide finish for enhanced strength and corrosion resistance.
• Size: Thread size 5-40 with a length of 1/4″ (6.35 mm).
• Knurling: Knurled body provides superior grip during handling and tightening.
• Applications: Ideal for securing shafts, collars, gears, pulleys, and fixtures where a flush, high-holding-set is required.

Why choose these set screws?

Reliability, precision, and ease of use—our set screws socket knurled cup point combine a robust alloy steel core with a practical cup-point geometry and a durable black-oxide finish to withstand everyday shop conditions.

Technical specifications

• Thread size: 5-40
• Length: 1/4″ (6.35 mm)
• Material: Alloy steel
• Finish: Thermal black oxide
• Point: Cup
• Drive: Socket (internal hex)

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.