Bulk 1/4"-20 UNC Knurled Cup Point Socket Set Screws, Thermal Black Oxide


Length: 5000 Qty - 1/4"-20 x 3/16"
Price:
Sale price$384.53

Description

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1/4"-20 UNC Knurled Cup Point Socket Set Screws

Alloy Steel | Thermal Black Oxide | Bulk Pack

Secure your mechanical assemblies with 1/4"-20 UNC Knurled Cup Point Socket Set Screws. Crafted from high-strength alloy steel and finished with a thermal black oxide coating, these set screws deliver both durability and moderate corrosion resistance. The knurled cup point features serrated ridges that dig into the contact surface, preventing loosening due to vibration or torque stress. Ideal for collars, gears, pulleys, and rotating assemblies, these screws are provided in convenient bulk packs to help you save on larger projects.

Key Features

  • Size & Thread: 1/4"-20 UNC (Coarse Thread)
  • Point Type: Knurled Cup Point for enhanced vibration resistance
  • Material: Alloy steel for dependable strength
  • Finish: Thermal black oxide for a smooth, dark finish and mild corrosion resistance
  • Drive Style: Internal Hex Socket (Allen wrench/hex key required)
  • Purpose: Securing collars, pulleys, gears, and other components on shafts
  • Bulk Availability: Cost-effective packs for large-scale usage

Why Knurled Cup Point Set Screws?

Knurled cup point set screws feature serrated ridges that bite into the mating surface, offering superior gripping power and preventing loosening even under high vibration or rotational stress. This design makes them an excellent choice for machinery, automotive work, and any shaft-to-component securement task.

Ideal Applications

  • Collars, Gears, & Pulleys on Shafts
  • Rotary Machinery & Equipment
  • Automotive & Small Engine Repair
  • Industrial & Mechanical Assemblies
  • Precision Instrumentation

Installation Tips

  • Use a matching hex socket/Allen wrench for proper torque application.
  • Apply steady, even torque to avoid thread or recess damage.
  • Ensure the contact surface is clean and debris-free for maximum grip.
  • Avoid over-tightening to prevent damage to the screw or tapped hole.

Order in Bulk Today

Experience reliable, vibration-resistant fastening with 1/4"-20 UNC Knurled Cup Point Socket Set Screws. Order now to enjoy fast shipping, bulk discounts, and dependable quality for all your mechanical needs.

✔️ Knurled cup point delivers superior hold against vibration

✔️ Thermal black oxide finish for moderate rust protection

✔️ Ideal for machinery, shafts, collars, and rotating assemblies

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