Mutual Screw & Supply

3/4-10 X 3-1/4" Socket Cap Screws | Hex Socket Drive | USA Made | Alloy Steel Thermal Black Oxide (25 / Pkg.)

3/4-10 X 3-1/4" Socket Cap Screws | Hex Socket Drive | USA Made | Alloy Steel - Main image
$68.92 $109.39 In stock

These 3/4-10 x 3-1/4" 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 size: 3/4-10
  • Length: 3-1/4"
  • 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 size: 3/4-10
  • Length: 3-1/4"
  • Threads per inch: 10
  • Measurement type: Inch
  • Pack quantity: 25 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 (5.0 / 5 · 5 reviews)

Carter D. ★★★★★

The hex socket drive made installation into a tight jig much easier than using a standard hex wrench. These 3/4-10 x 3-1/4" screws feel solid in the hand, and the black oxide finish hasn't shown any wear after several uses.

Christopher Q. ★★★★★

The black oxide finish on these screws is even and consistent, which made them slide smoothly into tapped holes without binding. I used a dozen for a heavy jig fixture and the hex socket held up perfectly under high torque. Exactly what you want for USA-made alloy steel hardware.

Claire W. ★★★★★

I needed some heavy-duty fasteners for a custom tooling setup, and these 3/4-10 x 3-1/4" screws fit perfectly. The hex socket drive gripped the Allen key solidly, and the black oxide coating already looks like it'll resist rust in my shop.