Mutual Screw & Supply

HOLO-KROME 73130 1/2-20 X 1" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (50 / Pkg.)

HOLO-KROME 73130 1/2-20 X 1" Socket Cap Screws | Hex Socket Drive | Alloy Steel - Main image
$35.57 $48.07 In stock

These 1/2-20 x 1" 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: 1/2-20
  • Length: 1"
  • 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: 1/2-20
  • Length: 1"
  • Threads per inch: 20
  • 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)

Eva ★★★★★

The black oxide finish makes these screws look clean and professional in my tooling jig. They threaded smoothly with no binding, and the hex socket drive seated perfectly with my wrench.

Michael ★★★★★

Used these to rebuild a fixture at work and the black oxide finish handled the grime without any surface rust after a week of coolant exposure. The hex socket drive seated cleanly with no rounding on the drive, which is what I was worried about with cheaper screws.

Ellie L. ★★★★★

Alloy steel is definitely the right call for my jig setups—these haven't stripped or rounded out even after constant tightening with the hex wrench. The black oxide gives them a nice, uniform grip that doesn't flake off when I'm swapping parts on the mill.