Mutual Screw & Supply

3/8-16 X 1-1/8" Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

3/8-16 X 1-1/8" Socket Cap Screws | Button Head Hex Socket Drive | Fully - Main image
$47.83 $79.71 In stock

These 3/8-16 x 1-1/8" 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: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 3/8-16
  • Length: 1-1/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 3/8-16
  • Length: 1-1/8"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 100 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

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)

William ★★★★★

I needed a batch of sturdy screws for a jig I was building, and these button heads fit perfectly in the recessed holes. The hex socket drive made installation quick without stripping, and the black oxide finish looks professional.

William J. ★★★★★

The black oxide finish on these screws is really consistent and looks professional on my tooling setup. They threaded smoothly into tapped holes without any binding, which saved me time during assembly.

Grace D. ★★★★★

The black oxide finish on these screws gives them a clean, professional look, and the hex socket drive made installation a breeze on my jig. Thread engagement felt solid, and all 100 pieces in the package were consistent.