Mutual Screw & Supply

HOLO-KROME 73074 1/4-28 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 73074 1/4-28 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$34.88 $50.55 In stock

These 1/4-28 x 2-1/4" 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: 1/4-28
  • Length: 2-1/4"
  • 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: 1/4-28
  • Length: 2-1/4"
  • Threads per inch: 28
  • Measurement type: Inch
  • Pack quantity: 100 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 (5.0 / 5 · 5 reviews)

Nicholas ★★★★★

The black oxide finish on these screws is holding up well against oil and chips in my jig setup, and the hex socket drives cleanly without stripping. They fit perfectly in my precision fixture plate threads.

Riley Q. ★★★★★

Just replaced the cheap bolts on my milling vise with these, and the black oxide coating fits into the slots perfectly without binding. They thread in smoothly with no wobble, and the hex socket grabs the Allen key tightly.

Lucy V. ★★★★★

I was worried about stripping the hex drive, but these threads are cleanly cut and the black oxide finish looks professional. They seated smoothly into my jig setup without any binding.