Mutual Screw & Supply

5/8-11 X 1-1/8" Socket Cap Screws | Hex Socket Drive | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

5/8-11 X 1-1/8" Socket Cap Screws | Hex Socket Drive | Fully Threaded | Alloy - Main image
$272.66 $373.5 In stock

These 5/8-11 x 1-1/8" 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: Fully Threaded
  • Thread size: 5/8-11
  • Length: 1-1/8"
  • 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: Fully Threaded
  • Thread size: 5/8-11
  • Length: 1-1/8"
  • Threads per inch: 11
  • 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 (4.6 / 5 · 5 reviews)

Abigail W. ★★★★★

The black oxide finish on these is perfect for my jig build—no glare under shop lights and they thread in smoothly without binding. The hex socket drive seated cleanly every time, and all 100 came out of the box with zero burrs or defects.

Penelope F. ★★★★★

I needed a batch of sturdy bolts for a jig I'm building, and these black oxide screws fit perfectly without any stripping. The fully threaded design gave me a solid grip, and the 100-count pack was a great value for the price.

Edward ★★★★★

Installed these into a piece of heavy machinery tooling, and the black oxide coating held up perfectly against some light oil exposure. The hex socket drive grabbed cleanly with my Allen wrench, no stripping at all.