Mutual Screw & Supply

1-3/8-6 X 7" Socket Cap Screws | Hex Socket Drive | Partially Threaded | Alloy Steel Thermal Black Oxide

1-3/8-6 X 7" Socket Cap Screws | Hex Socket Drive | Partially Threaded | Alloy - Main image
$50.86 $83.37 In stock

These 13/8-6 x 7" 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: Partially Threaded
  • Thread size: 13/8-6
  • Length: 7"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: 13/8-6
  • Length: 7"
  • Threads per inch: 6
  • Measurement type: Inch
  • Pack quantity: 1 per package
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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)

Ella ★★★★★

The partially threaded design made these perfect for my jig setup, and the black oxide finish has held up well in my shop. They fit snugly in the hex drive without any stripping, even under heavy torque.

Steven C. ★★★★★

Used them to secure a fixture on our milling table and the hex socket drive grabbed perfectly with no stripping at max torque. The partially threaded length gave just enough bite for the 7 inches of grip I needed.

Julian M. ★★★★★

The black oxide finish on these screws is perfectly uniform, and the hex socket drive engaged my Allen wrench without any slippage. They threaded cleanly into the tapped hole on my jig fixture and held tight under moderate torque.