Mutual Screw & Supply

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

1/2-13 X 3-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$34.95 $52.96 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
  • Head style: Flat Head
  • 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
  • Head style: Flat Head
  • 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 (4.6 / 5 · 5 reviews)

Ellie S. ★★★★★

Had to swap out a stripped bolt on a jig fixture and these threaded in clean without any fuss. The thermal black oxide finish feels slick and should hold up fine in the shop. Exactly the size I needed, and the partial threading gave just the right grip.

Eva ★★★★★

The flat head design on these 1/2-13 screws sits perfectly flush in my fixture plate, and the hex socket drive made installation with an Allen wrench effortless. The thermal black oxide finish looks durable and professional on my press tooling.

Natalie M. ★★★★★

The hex socket drive made torquing these down in a tight jig setup a lot easier than I expected, and the thermal black oxide finish looks uniform across all 25 pieces. Threads engaged cleanly on the first pass through my fixture plate, no binding or burs to clean up.