Mutual Screw & Supply

3/8-16 X 5-3/4" Socket Cap Screws | Hex Socket Drive | Partially Threaded | Alloy Steel Thermal Black Oxide (50 / Pkg.)

3/8-16 X 5-3/4" Socket Cap Screws | Hex Socket Drive | Partially Threaded | - Main image
$71.95 $104.27 In stock

These 3/8-16 x 5-3/4" 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: Partially Threaded
  • Thread size: 3/8-16
  • Length: 5-3/4"
  • 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: Partially Threaded
  • Thread size: 3/8-16
  • Length: 5-3/4"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 50 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)

Abigail ★★★★★

Installed these on a jig I'm building for work, and the alloy steel feels much tougher than the cheap zinc ones I used before. The thermal black oxide finish hasn't chipped or scratched during tightening either.

Daniel A. ★★★★★

The partially threaded length is exactly what I needed for a jig build, and the hex socket drive made tightening them in tight spots a breeze. They seated firmly without any stripping, and the thermal black oxide looks clean and consistent across all 50 pieces.

Edward ★★★★★

The black oxide finish on these screws is exactly what I needed for a tooling fixture that sees constant handling—no glare, no rust after a week of assembly work. The partial threading gives you that extra grip where it counts, and the hex socket drive makes them a breeze to torque down in tight spo