Mutual Screw & Supply

M3-0.5 X 4mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | 18/8 Stainless Steel (2100 / Pkg.)

M3-0.5 X 4mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$28.14 $45.39 In stock

These M3-0.5 x 4mm 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
  • Head style: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 4mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • 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: 4mm
  • Measurement type: Metric
  • Pack quantity: 2100 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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 (4.8 / 5 · 5 reviews)

Madison ★★★★★

I was worried about stripping such tiny screws, but these M3s hold beautifully with my hex driver. The 18/8 stainless steel feels solid and corrosion-resistant, perfect for the jigs I'm building.

Richard ★★★★★

I’ve been using these M3 screws for mounting small jig parts, and the 18/8 stainless steel holds up better than I expected in humid shop conditions.

Olivia E. ★★★★★

The hex socket drive grips the allen key perfectly, no stripped heads even when I’m torquing them into tight spots. For a 2100-pack of stainless M3s at this price, I’ve got no complaints—they’re clean, fully threaded, and they’ll last forever in my tooling.