Mutual Screw & Supply

HOLO-KROME 87221 M16-2 X 70mm Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (25 / Pkg.)

HOLO-KROME 87221 M16-2 X 70mm Socket Cap Screws | Flat Head Hex Socket Drive | - Main image
$85.23 $125.34 In stock

These M16-2 x 70mm 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: M16-2
  • Length: 70mm
  • 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: M16-2
  • Length: 70mm
  • Measurement type: Metric
  • Pack quantity: 25 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 (4.8 / 5 · 5 reviews)

Eli Z. ★★★★★

Installed these into a jig for a production run and the 70mm length gave perfect grip without bottoming out. The hex drive seated firmly with no cam-out, and the black oxide finish resisted chips well during repeated adjustments.

Joshua T. ★★★★★

The black oxide finish on these looks uniform and held up fine against my wrench, no flaking so far. Threads were clean and seated smoothly into an M16 tapped hole without needing to chase them. Solid heat-treated feel for a jig I’m building, though the 70mm length is a bit specific if you can’t use

Steven ★★★★★

Installing these in a precision fixture was a breeze thanks to the hex socket drive, and the thermal black oxide finish looks and feels durable. The M16-2 threads matched perfectly with my tapped holes.