Mutual Screw & Supply

5/8-11 X 5-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Alloy Steel Thermal Black Oxide (10 / Pkg.)

5/8-11 X 5-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$45.61 $61.63 In stock

These 5/8-11 x 5-1/2" 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: Partially Threaded
  • Thread size: 5/8-11
  • Length: 5-1/2"
  • 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: Partially Threaded
  • Thread size: 5/8-11
  • Length: 5-1/2"
  • Threads per inch: 11
  • Measurement type: Inch
  • Pack quantity: 10 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)

Kevin ★★★★★

I needed some heavy-duty fasteners for a jig I’m building, and these 5/8-11 x 5-1/2" screws with the hex socket drive were a perfect fit. The black oxide finish feels sturdy and resistant to rust, which is a bonus for my shop. They threaded in smoothly without any binding.

Michael N. ★★★★★

The black oxide finish on these has held up without a single spot of rust after a month sitting in my damp shop. Torqued them down on a fixture plate and the hex socket bit grabbed cleanly every time.

Ella ★★★★★

Finally, a bolt that fits the jig I built without slop — the partial threading on these 5-1/2" screws grabs just right. The thermal black oxide finish looks sharp and hasn't shown a speck of rust after a week in my damp garage.