Mutual Screw & Supply

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

5/8-11 X 5-1/2" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Partially - Main image
$102.1 $141.81 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
  • 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
  • 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: 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 (4.4 / 5 · 5 reviews)

Harper K. ★★★★★

The black oxide finish held up perfectly against some aggressive tapping fluid I used, and the nylon pellet keeps the screw locked in place without any thread locker needed.

Kevin D. ★★★★★

Perfect thread seating on my jig fixture—the 5.5-inch length is exactly what I needed to bridge the spacer stack. Black oxide finish looks clean and hasn't shown a hint of rust after a week on the shop floor.

Jacob G. ★★★★★

Got these for a jig I’m building, and the 5/8-11 threading is spot-on—the nylon pellet holds the threads tight so they don’t back out under vibration. The black oxide finish looks clean and hasn’t chipped during handling.