Mutual Screw & Supply

3/8-16 X 1-1/4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

3/8-16 X 1-1/4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully - Main image
$67.88 $94.28 In stock

These 3/8-16 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 style: Fully Threaded
  • Thread size: 3/8-16
  • 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 style: Fully Threaded
  • Thread size: 3/8-16
  • Length: 1-1/4"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 100 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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 (4.8 / 5 · 5 reviews)

Avery Y. ★★★★★

Black oxide finish really helps these screws resist surface rust in my damp shop, and the hex socket makes driving them flush into jig holes effortless.

Benjamin J. ★★★★★

I’ve been using these in a few jigs and they seat perfectly with no wobble. The black oxide finish looks great and seems to resist oil and grime better than I expected.

Leo O. ★★★★★

The nylon patch on these screws really holds them tight against vibration — perfect for my shop jig. The black oxide finish looks clean and professional too.