Socket Set Screw, Knurled Cup Point, 1/4-28 x 5/16", Alloy Steel, Black Oxide, Hex Socket (Quantity: 100) Fine Thread, Thread Diamater: 1/4 inch x Length: 5/16 inch

Knurled cup point Set Screws have an externally knurled cup point that locks the set screw in place and resists loosening and deformation under high vibration. Knurled cup point set screws are used both in poorly tapped holes and to locate gears and pulleys on shafts. Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque. Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.

• Thread: Fine / Thread / Alloy Steel / Black Oxide
• Recommended Hex Socket Allen Key Wrench: 1/8 (Inch)
• Thread Diameter-Pitch: 1/4-28, Length: 5/16 inch
• Recommended Hex Socket (Allen Wrench) Size: 1/8 (Inch)
• Black Oxide is not a protective finish and will rust if exposed to moisture. Stainless Steel material is recommended for environments with moisture