Mutual Screw & Supply

1/2-13 X 5-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Alloy Steel Thermal Black Oxide (25 / Pkg.)

1/2-13 X 5-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$66.16 $105.01 In stock

These 1/2-13 x 5-1/2" 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: 5-1/2"
  • 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: 5-1/2"
  • 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 (4.4 / 5 · 5 reviews)

Abigail D. ★★★★★

The black oxide finish on these screws looks properly done—no patchy spots, and they threaded into my fixture smoothly without any galling. The partial threading gave me just the right grip length for a 2-inch plate stack, so they’re doing exactly what I needed them for.

Daniel K. ★★★★★

I bolted these into a heavy jig for a milling operation and the full thread depth held tight without stripping. The thermal black oxide finish seems to resist shop grime well, and all 25 in the pack had clean, burr-free threads.

Adam ★★★★★

These partially threaded screws worked great for a jig I was building, the hex socket drive made them easy to tighten in a tight spot.