Mutual Screw & Supply

#4-40 × 1/8" 滾花杯形點六角凹槽螺絲 | 合金鋼 鍍鋅 (250/包)

#4-40 × 1/8" 滾花杯形點六角凹槽螺絲 | 合金鋼 鍍鋅 (250/包) - Main image
$34.75 $48.95 In stock

#4-40 x 1/8" knurled cup point socket set screws in Alloy Steel Zinc Plated, with a hex socket drive for high-torque adjustment in tight spaces.

  • 六角驅動
  • 滾花杯形尖端
  • 合金鋼鍍鋅結構

規格參數

  • 螺紋尺寸：#4-40
  • 長度：1/8"
  • 尖端：滾花杯形尖端
  • 材質：合金鋼鍍鋅
  • 包裝數量：250
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Customer Reviews (4.6 / 5 · 5 reviews)

Olivia ★★★★★

I needed a small batch of knurled cup point screws for a vintage machine restoration, and the knurled grip really helps seat the hex socket securely. The zinc plating is consistent, with no chips or burrs out of the package.

Robert I. ★★★★★

I was worried about stripping such tiny screws, but the hex socket drive handles high-torque adjustment in tight spots perfectly. The zinc plating gives them a clean, consistent finish, and all 250 arrived in good shape.

Violet ★★★★★

The knurled cup point on these #4-40 set screws gives me a nice grip when I’m adjusting them in tight spots. I’m using a batch for a small jig, and the zinc plating already seems to be holding up well against minor rust. A solid pack for precision work.