Mutual Screw & Supply

M20-2.5 X 220mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (5 / Pkg.)

M20-2.5 X 220mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$125.77 $182.28 In stock

These M20-2.5 x 220mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex 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: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M20-2.5
  • Length: 220mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M20-2.5
  • Length: 220mm
  • Measurement type: Metric
  • Pack quantity: 5 per package
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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 (4.4 / 5 · 5 reviews)

Henry J. ★★★★★

The hex socket drive on these screws grips the bit much better than I expected, making installation smooth even in tight spots. Used them for a heavy-duty tooling jig and the 12.9 alloy steel feels incredibly solid. A bit pricey for a pack of five, but the quality justifies the cost.

Claire O. ★★★★★

These bolts torqued down perfectly for a heavy-duty tooling fixture I'm building. The black oxide finish looks clean and the 12.9 grade feels reassuringly tough.

Grace ★★★★☆

The flat head sits flush in the counterbore on my jig fixture, and the black oxide finish hasn't scratched during assembly. I wish the packaging had a few more screws for the price, but the threads engage smoothly.