Mutual Screw & Supply

#4-40 X 1/2" 滾花杯頭內六角止付螺絲 | 合金鋼 (100個/包)

#4-40 X 1/2" 滾花杯頭內六角止付螺絲 | 合金鋼 (100個/包) - 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.

  • 六角驅動
  • 滾花杯形尖端
  • 合金鋼結構

規格參數

  • 螺紋尺寸: #4-40
  • 長度: 1/2"
  • 尖端: 滾花杯形尖端
  • 材質: 合金鋼
  • 包裝數量: 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.