Mutual Screw & Supply

M3-0.5 X 40mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | 18/8 Stainless Steel (600 / Pkg.)

M3-0.5 X 40mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | 18/8 - Main image
$28.29 $43.52 In stock

These M3-0.5 x 40mm socket cap screws are manufactured from 18/8 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 18/8 Stainless Steel
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 600 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 (5.0 / 5 · 5 reviews)

Victoria D. ★★★★★

Just finished assembling a batch of jigs and these M3 x 40mm stainless screws threaded in smoothly with no galling. The hex socket drive bit fit snugly, and they held firm without stripping during test tightening. For 600 pieces this is solid hardware for precision work.

Edward X. ★★★★★

600 screws in one box means I’ll never run out mid-project again, and the 18/8 stainless steel feels solidly machined—no burrs on the threads that I’ve seen. The hex socket drive sits snug with my Allen key, so they’ve been perfect for the jig I’m building.

Violet S. ★★★★★

Finally, a bulk pack of M3-0.5 x 40mm screws that actually cuts down on downtime—the hex drive fits perfectly without stripping, and the 18/8 stainless holds up well in my jig fixtures.