Mutual Screw & Supply

M20-2.5 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | 316 Stainless Steel (10 / Pkg.)

M20-2.5 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded - Main image
$55.89 $76.56 In stock

These M20-2.5 x 40mm socket cap screws are manufactured from 316 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 316 Stainless Steel
  • Head style: Flat Head
  • 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
  • Head style: Flat Head
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Grade: 316
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M20-2.5
  • Length: 40mm
  • 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 (4.8 / 5 · 5 reviews)

Joseph ★★★★★

The hex drive on these 316 stainless screws grabbed my driver bit perfectly without any cam-out trouble. They're holding up great in a salty outdoor machinery application where regular steel would have rusted by now.

Samuel J. ★★★★★

I used these for a jig I’m building, and the hex socket drive made for a much cleaner installation than standard bolts. The 316 stainless feels solid and should hold up well in my workshop.

Timothy ★★★★★

Finally found bolts that won't rust in my saltwater setup—these 316 stainless ones are a solid upgrade. The flat head sits flush against the aluminum frame, and the threads are clean and uniform right out of the pack. Really happy with the quality for the price.