Mutual Screw & Supply

HOLO-KROME 72364 7/8-9 X 7" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (10 / Pkg.)

HOLO-KROME 72364 7/8-9 X 7" Socket Cap Screws | Hex Socket Drive | Alloy Steel - Main image
$140.73 $213.22 In stock

These 7/8-9 x 7" 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: 7/8-9
  • Length: 7"
  • 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: 7/8-9
  • Length: 7"
  • Threads per inch: 9
  • Measurement type: Inch
  • Pack quantity: 10 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Stella K. ★★★★★

I needed some long fasteners for a custom jig setup and these 7-inch socket cap screws worked perfectly. The hex drive made installation straightforward with no cam-out issues. They feel solid and the black oxide finish seems durable.

Mia ★★★★★

The thermal black oxide coating on these screws held up perfectly when I used them for a jig build—no rust or galling after several adjustments. The hex socket drive seated cleanly with my Allen key, making installation straightforward even in tight spots. I’ll definitely order these again for futur

Ava ★★★★★

Installed these on a heavy-duty press fixture I’m building and the black oxide finish handled the cutting fluid just fine. The hex drive seated cleanly with no wobble—exactly what I needed for a tight tolerance assembly.