Mutual Screw & Supply

#4-40 X 1/2" Knurled Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.)

#4-40 X 1/2" Knurled Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.) - Main image
$149.27 $207.32 In stock

#4-40 x 1/2" knurled cup point socket set screws in Alloy Steel, with a hex socket drive for high-torque adjustment in tight spaces.

  • Hex socket drive
  • Knurled Cup Point tip
  • Alloy Steel construction

Specifications

  • Thread Size: #4-40
  • Length: 1/2"
  • Point: Knurled Cup Point
  • Material: Alloy Steel
  • Package Quantity: 100
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Customer Reviews (5.0 / 5 · 5 reviews)

Eva M. ★★★★★

The knurled cup point on these set screws really grips the shaft without damaging it, which was exactly what I needed for a small jig fixture. They threaded smoothly into the tapped hole with no binding, and the hex drive made final tightening easy.

Amelia U. ★★★★★

Perfect fit for adjusting the depth stop on my drill press—the knurled cup point grips tight without slipping. The hex socket drive makes installation a breeze in those cramped spots. Solid little screws for the price.

William ★★★★★

These little set screws are great for locking down pulleys on small shafts. The knurled cup point really bites into the surface without damaging it, and the alloy steel feels plenty tough for my needs.