Mutual Screw & Supply

1/2-20 X 3" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially Threaded | Alloy Steel Thermal Black Oxide (50 / Pkg.)

1/2-20 X 3" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially - Main image
$212.09 $282.79 In stock

These 1/2-20 x 3" 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: 1/2-20
  • Length: 3"
  • 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: 1/2-20
  • Length: 3"
  • Threads per inch: 20
  • Measurement type: Inch
  • Pack quantity: 50 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)

Joseph B. ★★★★★

The nylon patch is a nice touch—these hold fast under vibration without needing thread locker. Threads cut clean and the partially threaded design seated perfectly in my jig setup. Pack of 50 was worth every penny.

Matthew Z. ★★★★★

The black oxide finish looks professional and the hex socket makes driving these into jig holes effortless. They fit perfectly in my machinery setup without any wobble.

Miles ★★★★★

The nylon patch on these screws holds them in place perfectly during assembly, saving me from using separate threadlocker. The black oxide finish looks professional and seems durable on our jigs.