Mutual Screw & Supply

M30-3.5 X 50mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (3 / Pkg.)

M30-3.5 X 50mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$27.89 $45.72 In stock

These M30-3.5 x 50mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M30-3.5
  • Length: 50mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M30-3.5
  • Length: 50mm
  • Measurement type: Metric
  • Pack quantity: 3 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)

George V. ★★★★★

Needed three for a jig rebuild and these M30s fit perfectly with no wobble—the hex socket drive made torquing them down easy. Very happy with the quality.

Zoe ★★★★★

These black oxide screws are perfect for my jig project—the hex socket drive made installation really easy with no slippage. The 12.9 alloy steel feels incredibly solid and durable compared to standard bolts. Exactly what I needed for precision tooling work.

Aurora Z. ★★★★★

Had to replace a stripped bolt on a heavy press jig—these threaded in smooth and held tight under full torque. The black oxide finish hasn’t chipped or rusted after a week of oily shop use. Exactly what I needed for a repair that can’t fail.