Mutual Screw & Supply

HOLO-KROME 73056 1/4-28 X 1/2" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 73056 1/4-28 X 1/2" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$20.29 $31.22 In stock

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

Christopher ★★★★★

Used a handful of these to secure a tooling fixture on my mill table, and the hex socket drive made installation quick with a ball-end Allen key. The black oxide finish seems to hold up well against light coolant splash without rusting. Exactly what I needed for precision work.

Jacob ★★★★★

Put these into a jig for drilling aluminum parts and the hex socket drove true every time without stripping. The black oxide finish held up nicely against cutting fluid, which surprised me. Exactly what I needed for fixturing work.

Victoria V. ★★★★★

I needed a batch of 1/4-28 x 1/2" screws for a jig I was building, and these seated perfectly into the threaded holes without any binding. The hex socket drive took an Allen wrench without stripping, which was a relief after using cheap fasteners before.