Mutual Screw & Supply

HOLO-KROME 72124 5/16-18 X 3/4" Socket Cap Screws | Hex Socket Drive | Excess Stock | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 72124 5/16-18 X 3/4" Socket Cap Screws | Hex Socket Drive | Excess - Main image
$13.86 $19.8 In stock

These 5/16-18 x 3/4" 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 size: 5/16-18
  • Length: 3/4"
  • 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 size: 5/16-18
  • Length: 3/4"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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)

James ★★★★★

I was replacing some hardware on a milling fixture and these cap screws seated perfectly with zero wobble. The black oxide coating looks great and seems like it'll hold up well against oil and chips.

Leo ★★★★★

Finally got to use these on a jig for my mill and the hex socket drive grabbed perfectly without any strip. The black oxide finish seems like it'll hold up well against shop grime.

Sophia ★★★★★

Pulled these out for a fixture build today and they threaded in perfectly smooth, no burrs or rough edges like some cheaper packs I've tried. The hex socket drive bit snugged right in without any wobble.