Mutual Screw & Supply

5/8-11 X 3-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially Threaded | Alloy Steel Thermal Black Oxide (25 / Pkg.)

5/8-11 X 3-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially - Main image
$214.93 $325.65 In stock

These 5/8-11 x 3-1/2" 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: 5/8-11
  • Length: 3-1/2"
  • 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: 5/8-11
  • Length: 3-1/2"
  • Threads per inch: 11
  • Measurement type: Inch
  • Pack quantity: 25 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)

William ★★★★★

The nylon pellet locking mechanism is a nice touch—holds tight on my jig without loosening under vibration. These coarse threads seated cleanly in my 5/8-11 tapped holes, and the black oxide finish feels durable.

Grace I. ★★★★★

Fit these on a couple of fixtures at work where vibration was an issue, and the nylon pellet really does its job holding them snug. The thermal black oxide finish also looks clean and seems to resist rust well so far. Exactly what I needed for tooling.

Jacob ★★★★★

I needed some strong bolts for a jig I was building, and these 5/8-11 socket cap screws fit perfectly. The nylon pellet really helped lock them in place against vibration, and the hex drive made installation easy with just an Allen key.