Mutual Screw & Supply

5/16-18 X 1-1/4" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

5/16-18 X 1-1/4" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel - Main image
$23.35 $38.92 In stock

These 5/16-18 x 1-1/4" 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 size: 5/16-18
  • Length: 1-1/4"
  • 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 size: 5/16-18
  • Length: 1-1/4"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 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 (4.2 / 5 · 5 reviews)

Jacob ★★★★★

The hex socket drive made it really easy to tighten these down in a tight spot on my tooling setup, and the black oxide finish looks clean. Fit perfectly for a quick fixture repair I had to do.

Owen ★★★★★

I needed some for a jig I was building, and the black oxide finish on these feels like it'll hold up better than plain steel in my shop. They threaded smoothly into a tapped hole without any binding.

Madison I. ★★★★☆

The black oxide finish on these screws gives them a clean, uniform look straight out of the package, and the low head profile clears tight clearances on my jig without grinding. Only gripe is the hex socket seemed a touch shallow on a few pieces, but they drive fine with a standard allen key.