Mutual Screw & Supply

HOLO-KROME 72346 7/8-9 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (10 / Pkg.)

HOLO-KROME 72346 7/8-9 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel - Main image
$57.69 $86.1 In stock

These 7/8-9 x 3" 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: 3"
  • 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: 3"
  • Threads per inch: 9
  • Measurement type: Inch
  • Pack quantity: 10 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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 (5.0 / 5 · 5 reviews)

Christopher I. ★★★★★

Used a few of these to secure a new jig on my milling table and the black oxide finish is holding up nicely against the metal shavings. The hex socket drive felt precise and snug going in.

Violet ★★★★★

Finally got around to swapping out some older bolts on my jig and these went in smooth with a hex key, no stripped heads. The 7/8-9 threads are cut clean and the alloy steel feels solid for the money. For a ten-pack at this price, they're a no-brainer for shop use.

Owen ★★★★★

The thermal black oxide finish on these is exactly what I needed for clamping fixtures that see daily oil and grime—wiped them down after a month and they still look fresh. The 3/4" socket depth grabs the hex wrench solidly without rounding out, even on the 7/8-9 threads when I'm torquing hard. Slig