Mutual Screw & Supply

1/2-13 X 4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially Threaded | Alloy Steel Thermal Black Oxide (25 / Pkg.)

1/2-13 X 4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Partially - Main image
$74.63 $108.16 In stock

These 1/2-13 x 4" 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: 1/2-13
  • Length: 4"
  • 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: 1/2-13
  • Length: 4"
  • Threads per inch: 13
  • 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)

John S. ★★★★★

The black oxide finish looks sharp in my tool drawer, and the nylon patch keeps these threaded bolts from backing out on my milling fixture. Threads cut clean into 1018 steel with no galling, and all 25 in the pack came sized right.

Sebastian Z. ★★★★★

The black oxide finish on these gave them a nice, uniform look right out of the package, and they threaded smoothly into my jig fixture without any binding. For a 1/2-13 screw this size, the socket drive gave me plenty of leverage with just a hex key.

Avery ★★★★★

Finally, a bolt that doesn't strip the hex socket on me — the black oxide finish feels tough and the nylon patch holds tight against vibration. Used them to secure a jig on my milling table and they seated perfectly without any wobble. Exactly what I needed for heavy-duty tooling work.