Mutual Screw & Supply

M3-0.5 X 30mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded (750 / Pkg.)

M3-0.5 X 30mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded (750 - Main image
$27.58 $41.16 In stock

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

  • Class 8.8 Steel Plain construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 750

Specifications

  • Thread Size: M3-0.5
  • Length: 30mm
  • Thread Pitch: 0.5mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 750
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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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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 (4.6 / 5 · 5 reviews)

Penelope D. ★★★★★

Threads are clean and uniform through all 30mm, so they drive in smoothly without binding. Class 8.8 steel feels solid enough for my jig fixtures, and 750 in one box means I won’t run out mid-project.

Charlotte R. ★★★★★

Needed exactly 30mm for a specific bracket assembly and these fit perfectly with no wobble. The hex head lets you really torque them down with a socket, and the thread engagement feels solid. A full pack like this will cover many builds.

Sophia S. ★★★★★

Was hunting for M3 hardware that wouldn't strip on the first torque and these class 8.8s held up perfectly across a full machine assembly. The fully threaded length saved me from cutting anything down, and the hex heads seated cleanly with a socket drive. 750 per pack means I won't be reordering for