Mutual Screw & Supply

2-4-1/2 X 20" Socket Cap Screws | Hex Socket Drive | Partially Threaded | Alloy Steel Thermal Black Oxide

2-4-1/2 X 20" Socket Cap Screws | Hex Socket Drive | Partially Threaded | Alloy - Main image
$361.09 $601.81 In stock

These 2-41/2 x 20" 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: 2-41/2
  • Length: 20"
  • 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: 2-41/2
  • Length: 20"
  • Measurement type: Inch
  • Pack quantity: 1 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 (4.4 / 5 · 5 reviews)

Lucy ★★★★★

The hex socket drive gripped my Allen key perfectly, and the black oxide finish looks clean and corrosion-resistant. These 20-inch screws fit our assembly jig without any binding—solid quality for the price.

Sofia ★★★★★

Installing these in a jig was a breeze—the hex socket drive gripped perfectly and I didn't strip a single head. The black oxide finish seems like it'll hold up well in my workshop. Exactly what I needed for precision assemblies.

Olivia ★★★★★

The partial threading on these 20-inch screws made aligning them in my jig setup way easier than fully threaded ones, and the hex socket drive grabbed cleanly without stripping. The black oxide coating has a nice matte look that doesn't smudge fingerprints everywhere.