Mutual Screw & Supply

HOLO-KROME 72176 3/8-16 X 3-1/4" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (50 / Pkg.)

HOLO-KROME 72176 3/8-16 X 3-1/4" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$43.03 $65.2 In stock

These 3/8-16 x 3-1/4" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Socket Drive
  • Thread size: 3/8-16
  • Length: 3-1/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: 3/8-16
  • Length: 3-1/4"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 50 per package
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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)

Julian ★★★★★

Needed a few for a jig I was building, and these threaded in smoothly without any binding. The hex socket drive gave a solid bite, and the black oxide finish looks clean. A perfect fit for the job.

Ellie ★★★★★

The black oxide finish on these screws seems to hold up well without any rust forming on the threads. I used them to secure some heavy jig parts, and the hex drive seated perfectly with no stripping.

Robert ★★★★★

The black oxide finish on these screws matched my machine frame perfectly and they threaded in smoothly without any binding. Used them on a jig setup and all 50 pieces had consistent threads with no duds in the pack.