Mutual Screw & Supply

M3-0.5 X 30mm Hex Head Cap Screws | 18/8 Stainless Steel | Fully Threaded (500 / Pkg.)

M3-0.5 X 30mm Hex Head Cap Screws | 18/8 Stainless Steel | Fully Threaded (500 - Main image
$23.96 $33.75 In stock

M3-0.5 x 30mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • 18/8 Stainless Steel construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 500

Specifications

  • Thread Size: M3-0.5
  • Length: 30mm
  • Thread Pitch: 0.5mm
  • Material: 18/8 Stainless Steel
  • Grade: 18/8
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 500
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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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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.0 / 5 · 5 reviews)

Leo A. ★★★★★

Packed a whole drawer of these and they seated perfectly in every M3 nut I tried. The hex head grabs the driver nicely without slipping.

Brian V. ★★★★☆

Used these for mounting some brackets on a 3D printer build, and the stainless steel threads held up well under tightening. The hex heads made it easy to drive them in with a socket, though I’d prefer a slightly tighter thread fit for precision work. Overall, a solid choice for general assembly jobs

Harper J. ★★★★☆

The hex heads grip the wrench cleanly, so they’re easy to drive without stripping, and the fully threaded shaft makes them versatile for a lot of builds. Honestly, I just wish the pack came with a couple extras, but 500 is plenty for my current projects.