Mutual Screw & Supply

HOLO-KROME 61038 5/16-24 X 1-1/4" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 61038 5/16-24 X 1-1/4" Socket Cap Screws | Flat Head Hex Socket - Main image
$36.48 $56.13 In stock

These 5/16-24 x 1-1/4" 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
  • Head style: Flat Head
  • Drive: Socket Drive
  • Thread size: 5/16-24
  • Length: 1-1/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: 5/16-24
  • Length: 1-1/4"
  • Threads per inch: 24
  • 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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Returning an item

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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)

Daniel X. ★★★★★

Just finished a jig for the shop and these flat heads seated perfectly flush every single time. The thermal black oxide finish looks sharp and the threads ran clean without any galling.

Madison J. ★★★★★

I needed some black oxide fasteners for a jig I was building, and these 5/16-24 socket cap screws fit perfectly. The hex socket drive grabbed onto my allen wrench securely without any slipping, and the finish looks professional.

Ryan ★★★★★

I needed socket cap screws for a new jig build and the black oxide finish on these gives them a nice, consistent look. They threaded cleanly into the tapped holes without any binding, exactly what I was hoping for from alloy steel.