Mutual Screw & Supply

HOLO-KROME 87021 M3-0.5 X 25mm Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 87021 M3-0.5 X 25mm Socket Cap Screws | Flat Head Hex Socket Drive | - Main image
$29.08 $39.83 In stock

These M3-0.5 x 25mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Head style: Flat Head
  • Drive: Socket Drive
  • Thread size: M3-0.5
  • Length: 25mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: M3-0.5
  • Length: 25mm
  • Measurement type: Metric
  • Pack quantity: 100 per package
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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Kevin ★★★★★

Used a full row of these on a jig fixture yesterday, and the flat heads seated flush without any cam-out issues. The thermal black oxide held up fine against the steel shavings, and the threading was clean on every single one. For 100 pieces at this price, they’re a solid buy if you do precision ass

Miles ★★★★★

The black oxide finish on these M3 screws is really consistent across the whole pack, which made my jig assembly feel much more precise. They drive in smoothly with a hex key and hold tight without stripping.

Avery L. ★★★★★

I've been swapping out the cheap screws on my jigs and fixtures for these and it's made a world of difference. The 25mm length is perfect for the through-holes I'm using, and the flat head sits flush without any wobble. You get a full 100 in the pack, so I've got plenty to stock up for future projec