Mutual Screw & Supply

1/4-20 X 3" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

1/4-20 X 3" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel Thermal - Main image
$82.06 $117.23 In stock

These 1/4-20 x 3" 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: 1/4-20
  • Length: 3"
  • 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: 1/4-20
  • Length: 3"
  • Threads per inch: 20
  • Measurement type: Inch
  • Pack quantity: 100 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)

Harper L. ★★★★★

Installed a dozen of these into a new jig I’m building and they threaded in cleanly with no binding. The black oxide finish feels durable and should resist rust better than plain steel. Great value for a hundred-pack.

Owen P. ★★★★★

These low-profile heads fit perfectly into the counterbored holes on my fixture table, and the black oxide finish feels really durable. The hex drive seated cleanly without stripping, which is a big plus over standard bolts.

William X. ★★★★★

Replaced the cheap zinc bolts on my old toolbox with these, and the black oxide finish makes them look like they belong on a proper piece of machinery. The hex socket drive grabs perfectly with a ball-end Allen key, and the threads on all 100 cut clean without any binding. Slightly stiffer than I'd