Mutual Screw & Supply

5/16-18 X 1/2" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

5/16-18 X 1/2" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully - Main image
$31.7 $45.94 In stock

These 5/16-18 x 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: Fully Threaded
  • Thread size: 5/16-18
  • Length: 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: Fully Threaded
  • Thread size: 5/16-18
  • Length: 1/2"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 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 (5.0 / 5 · 5 reviews)

Violet ★★★★★

The nylon patch on the threads is a nice touch—saves me from having to apply thread locker on each screw. Fit perfectly into my precision assembly jig without any issues.

Aurora V. ★★★★★

These are perfect for the jig I’m building; the black oxide finish looks great and the nylon patch holds them tight without any extra thread locker.

Ryan ★★★★★

Working on a precision tooling project and these 5/16-18 screws fit perfectly into the tapped holes. The black oxide finish looks great and the nylon patch holds them snug without needing separate thread locker.