Mutual Screw & Supply

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

1/4-20 X 2-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially - Main image
$278.5 $415.67 In stock

These 1/4-20 x 2-1/2" 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
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: 1/4-20
  • Length: 2-1/2"
  • 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: 1/4-20
  • Length: 2-1/2"
  • 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 (4.6 / 5 · 5 reviews)

Claire ★★★★★

I’ve been using these for a fixture build and the partially threaded design made alignment a lot easier than fully threaded screws. The black oxide finish seems durable and hasn’t chipped during installation.

Benjamin G. ★★★★★

The nylon pellet on these seems to actually grip the thread tighter than standard screws, which I noticed right away when snugging down a jig fixture. The 2-1/2" length worked perfectly for the adjustable stop blocks I've been building.

Isabella X. ★★★★★

The black oxide finish on these screws looks professional and resists rust well during assembly. I used them for a jig build and the hex socket drive made installation quick with no cam-out issues. The length is spot-on for getting a strong grip through 1/4-inch steel plate.