Mutual Screw & Supply

M20-2.5 X 40mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 8.8 Alloy Steel Thermal Black Oxide (25 / Pkg.)

M20-2.5 X 40mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$39.58 $54.22 In stock

These M20-2.5 x 40mm 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
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M20-2.5
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 8.8
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M20-2.5
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 25 per package
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Standard Shipping · United States: $0.00

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 (4.4 / 5 · 5 reviews)

Miles M. ★★★★★

The hex socket drive on these M20 screws fits my socket wrench perfectly, no wobble at all. I’m using them for a jig build and the fully threaded length grabbed tight without stripping.

Daniel V. ★★★★★

Needed a solid bolt for a jig I was building, and these fully threaded screws gave me exactly the clamping force I needed. The black oxide finish looks clean and seems like it'll resist shop grime.

Ryan U. ★★★★★

The black oxide finish on these M20s is spot on, and the threads are clean enough that they ran into my jig hardware without any fuss. I’ve already used half the pack on a tooling frame and they’ve held torque perfectly, so I’m ordering another set.