Mutual Screw & Supply

1/2-13 X 3-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially Threaded | Alloy Steel Thermal Black Oxide (25 / Pkg.)

1/2-13 X 3-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially - Main image
$65.72 $95.25 In stock

These 1/2-13 x 3-1/2" 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: 1/2-13
  • Length: 3-1/2"
  • 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: 1/2-13
  • Length: 3-1/2"
  • Threads per inch: 13
  • Measurement type: Inch
  • Pack quantity: 25 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 (4.8 / 5 · 5 reviews)

George ★★★★★

Popped these on a precision alignment fixture and the nylon patch held tight after a full day of heavy vibration—no backing out at all. The black oxide finish feels solid and the hex drive engaged perfectly with my Allen key.

William E. ★★★★★

I needed exactly these for a jig I was building and the nylon patch is a huge time saver since it holds them in place without needing a separate lock washer. The hex socket drive makes them easy to install in tight spots on the assembly table.

Benjamin B. ★★★★★

The nylon patch held these bolts securely in place on my milling machine fixture, even under heavy vibration. The black oxide finish looks clean and professional.