Mutual Screw & Supply

7/8-9 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially Threaded | Alloy Steel Thermal Black Oxide (10 / Pkg.)

7/8-9 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially - Main image
$194.24 $289.91 In stock

These 7/8-9 x 2-1/4" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: 7/8-9
  • 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: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: 7/8-9
  • Length: 2-1/4"
  • Threads per inch: 9
  • Measurement type: Inch
  • Pack quantity: 10 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)

Natalie G. ★★★★★

The hex drive grabbed perfectly without any cam-out, and the black oxide finish has a nice, even look. Installed these into a jig fixture and they held tight with no wobble.

Robert ★★★★★

The partially threaded design seated these perfectly in my fixture plate without any bottoming-out hassle, and the black oxide finish handled the shop grime without a fuss. Fit was spot-on in the tap hole I’d prepped, so these are going straight into my regular stock for jig work.

Sebastian ★★★★★

The nylon pellet locking feature on these socket cap screws is a game-changer for keeping things tight on my tooling jigs. The black oxide finish looks great and seems durable. Exactly the heavy-duty fasteners I needed for this machinery project.