Mutual Screw & Supply

HOLO-KROME 72168 3/8-16 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (50 / Pkg.)

HOLO-KROME 72168 3/8-16 X 2-1/4" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$25.16 $34.94 In stock

These 3/8-16 x 2-1/4" 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: 2-1/4"
  • 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: 2-1/4"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 50 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 (5.0 / 5 · 5 reviews)

Penelope U. ★★★★★

Installing these in a jig setup, the hex socket drive grabbed firmly without any cam-out — much better than the standard bolts I'd been using. At 2-1/4 inches, they're the perfect length for my precision assembly work, and the thermal black oxide coating looks clean and resists scuffing nicely.

Charlotte S. ★★★★★

The black oxide finish on these screws gives them a nice, uniform look, and they seated perfectly in my jig without any binding. I ordered the 50-pack for a few machinery repairs, and the quality feels solid for the price.

Ellie ★★★★★

The hex socket drive on these 3/8-16 bolts gripped perfectly with my Allen wrench, and the black oxide finish hasn't shown a hint of wear after a few days in my jig setup. Exactly what I needed for a precise tooling assembly.