Mutual Screw & Supply

#4-40 x 3/16" 滾花杯形點內六角止付螺絲 | 合金鋼鍍鋅 (250 / 包)

#4-40 x 3/16" 滾花杯形點內六角止付螺絲 | 合金鋼鍍鋅 (250 / 包) - Main image
$33.08 $48.65 In stock

#4-40 x 3/16" 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：3/16"
  • 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 (5.0 / 5 · 5 reviews)

Brian ★★★★★

The hex socket drive made cinching these down in a tight bracket far easier than I expected for such a small screw. The knurled cup point grips the shaft firmly, and all 250 arrived clean and consistent under the zinc plating.

Isabella ★★★★★

These little screws are perfect for my smaller fixtures where I need to lock a shaft without worrying about marring the surface. The knurled cup point really bites down and the zinc plating looks clean and won't flash-rust.

Ruby ★★★★★

The knurled cup point grips the shaft way better than a plain set screw—no slipping even after I torqued them down in a cramped spot with a hex key. The zinc plating also held up fine against a bit of moisture in my shop. For 250 pieces at this price, I’ve got spares for years.