Mutual Screw & Supply

1/4-20 X 1-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Nylon Pellet | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

1/4-20 X 1-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Nylon Pellet | - Main image
$95.05 $135.78 In stock

These 1/4-20 x 1-1/2" 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
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 1-1/2"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 1-1/2"
  • Threads per inch: 20
  • Measurement type: Inch
  • Pack quantity: 100 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)

Edward M. ★★★★★

I used a handful of these for jig assembly, and the hex socket drive made tightening them in tight spots effortless. The black oxide finish on the alloy steel feels really durable, and the nylon pellet kept them from backing out under vibration. Great value for a hundred pack.

Andrew O. ★★★★★

The nylon pellet locks them in place firmly, so they don’t back out after a day of vibration on the jig. Threads cut clean into steel without any galling, and the black oxide coating hasn’t chipped or smeared after repeated tightening.

Claire ★★★★★

The black oxide finish is holding up great so far—no wear after a few days of repeated fitting in my jig setup. All 100 came with clean threads and the hex drive bites perfectly with a 5/32 Allen key.