Mutual Screw & Supply

M20-2.5 X 140mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (10 / Pkg.)

M20-2.5 X 140mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$57.08 $78.19 In stock

These M20-2.5 x 140mm 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: 140mm
  • 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: 140mm
  • Measurement type: Metric
  • Pack quantity: 10 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)

Owen P. ★★★★★

The partially threaded length saved me a ton of setup time on my jig—I could bolt through the fixture without extra spacers. The black oxide finish looks sharp and the hex socket took my torque wrench without stripping.

Olivia T. ★★★★★

The hex socket seated perfectly on my driver with zero wobble, and the thermal black oxide finish looks like it'll shrug off shop grime for years. These M20s are replacing some lesser bolts on a jig I use daily, and the partial threading gave me just the grip I needed on the clamp plate.

Ava A. ★★★★★

The 10.9 alloy steel is noticeably tougher than the standard screws I’ve used before. These flat head screws are holding my new machine fixture perfectly, and the black oxide finish gives them a clean, professional look.