Mutual Screw & Supply

3/8-24 X 5/8" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

3/8-24 X 5/8" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Fully - Main image
$87.39 $116.52 In stock

These 3/8-24 x 5/8" 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: 3/8-24
  • Length: 5/8"
  • 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: 3/8-24
  • Length: 5/8"
  • Threads per inch: 24
  • 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 (4.2 / 5 · 5 reviews)

Joseph P. ★★★★★

The threaded nylon pellet locks tight without any loosening under vibration, which is exactly what I needed for a precision assembly. The black oxide finish also makes them easy to grip during installation, and all 100 arrived with clean threads.

Claire ★★★★★

The nylon pellet locking feature on these screws is exactly what I needed for securing adjustments on a jig without vibrating loose. They thread smoothly into 3/8-24 tapped holes and the black oxide finish looks clean and professional. A solid choice for precision work.

Ava X. ★★★★☆

Installed a batch of these in a new jig I'm building and the black oxide finish held up nicely against some moderate torque. The hex socket drive seated well with my Allen key, no stripping issues. Only minor thing is the nylon pellet gives decent lock but not as strong as a separate threadlocker.