Mutual Screw & Supply

M8-1.25 X 240mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (50 / Pkg.)

M8-1.25 X 240mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$261.87 $374.1 In stock

These M8-1.25 x 240mm 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: Partially Threaded
  • Thread size: M8-1.25
  • Length: 240mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M8-1.25
  • Length: 240mm
  • Measurement type: Metric
  • Pack quantity: 50 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)

Andrew ★★★★★

These 240mm screws are perfect for a heavy clamping fixture I built; the hex socket drive made torquing them down easy even in tight spaces. The black oxide finish looks clean and seems durable so far.

Steven K. ★★★★★

I needed long M8 bolts for a custom jig, and these 240mm screws reached perfectly through thick aluminum plates. The hex socket drive makes them easy to tighten without stripping, and the black oxide finish looks clean. Worked great for the precision assembly I was building.

Miles Q. ★★★★★

The threading on these is clean and consistent—every one of the 50 seated perfectly in my jig without any binding. The black oxide finish is evenly applied and has held up well against shop oil and handling. I’ll be ordering these again for future precision assembly work.