Mutual Screw & Supply

M20-2.5 X 170mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (40 / Pkg.)

M20-2.5 X 170mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$426.08 $583.67 In stock

These M20-2.5 x 170mm 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: 170mm
  • 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 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M20-2.5
  • Length: 170mm
  • Measurement type: Metric
  • Pack quantity: 40 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 (5.0 / 5 · 5 reviews)

Riley G. ★★★★★

I was a bit worried about getting the thread engagement right on a jig I’m building, but these 170mm screws fit perfectly with the M20-2.5 pitch, and the hex socket drive made tightening them much easier than using a wrench.

Mia ★★★★★

The black oxide finish on these M20 bolts looks great and seems like it'll hold up well in my jig. The hex drive made installation straightforward, and the partial threading gave me exactly the grip length I needed.

Adam V. ★★★★★

Used these to replace worn bolts on a heavy press fixture; the class 10.9 strength is solid and the black oxide finish resists grime. Threads ran clean with a tap, no binding at all.