Mutual Screw & Supply

HOLO-KROME 72152 3/8-16 X 5/8" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 72152 3/8-16 X 5/8" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$26.79 $39.98 In stock

These 3/8-16 x 5/8" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Socket Drive
  • Thread size: 3/8-16
  • 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: Socket Drive
  • Thread size: 3/8-16
  • Length: 5/8"
  • Threads per inch: 16
  • 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 (4.6 / 5 · 5 reviews)

Ava ★★★★★

The hex socket drive on these screws really locks into the Allen wrench without slipping, which makes a huge difference when I'm tightening them in tight spots. The black oxide coating seems like it will hold up well against minor rust in my shop.

Brian ★★★★★

Third box of these I've ordered for our shop fixtures, and the black oxide finish holds up way better than plain zinc ones I've tried. The hex socket drive seats perfectly on my Allen keys every time, zero stripping on the first hundred or so.

Eli ★★★★★

I’ve used these in a few jigs and they seat perfectly without any binding, and the hex drive grabs cleanly every time. The thermal black oxide coating has a nice consistent look across all 100 pieces, which is more than I can say for some bulk fasteners I’ve bought. Exactly what I needed for precisi