Mutual Screw & Supply

1-8 X 3" Socket Cap Screws | Hex Socket Drive | USA Made | Alloy Steel Thermal Black Oxide (10 / Pkg.)

1-8 X 3" Socket Cap Screws | Hex Socket Drive | USA Made | Alloy Steel Thermal - Main image
$64.69 $96.55 In stock

These 1-8 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: 1-8
  • 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: 1-8
  • Length: 3"
  • Threads per inch: 8
  • Measurement type: Inch
  • Pack quantity: 10 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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 (4.8 / 5 · 5 reviews)

Sebastian ★★★★★

The black oxide coating on these is consistent and doesn't flake off when threading them into my jig. For $1-8 x 3" hex drive screws, they seat perfectly in the socket without slipping.

Victoria S. ★★★★★

I've bought cheap import bolts before and regretted it, but these alloy steel screws are in another league. The black oxide finish looks great and they thread into my tooling plates with a satisfying, snug fit that just feels right.

Daniel ★★★★★

Needed these for a jig I was building, and the 3-inch length gave me just enough thread engagement through thick steel plate. The black oxide finish looks clean and seems resistant to oil stains so far.