Mutual Screw & Supply

HOLO-KROME 64070 3/8-16 X 7/8" Socket Cap Screws | Button Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (50 / Pkg.)

HOLO-KROME 64070 3/8-16 X 7/8" Socket Cap Screws | Button Head Hex Socket Drive - Main image
$16.99 $24.63 In stock

These 3/8-16 x 7/8" 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
  • Head style: Button Head
  • Drive: Socket Drive
  • Thread size: 3/8-16
  • Length: 7/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: 3/8-16
  • Length: 7/8"
  • Threads per inch: 16
  • Measurement type: Inch
  • Pack quantity: 50 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 (4.8 / 5 · 5 reviews)

Kevin X. ★★★★★

The black oxide finish on these screws looks great and resists rust well in my shop. They seated perfectly in my precision assembly fixture without any wobble. For the price, you get a solid batch of fasteners that hold up under repeated use.

Matthew ★★★★★

Used these for a jig I was building and they seated perfectly with a hex key, no stripping or wobble. The 3/8-16 thread is solid on these alloy steel ones, and the black oxide gives them a nice uniform finish that should resist a bit of shop grime.

Avery ★★★★★

The black oxide finish on these screws held up perfectly during a recent fixture assembly, no galling at all on the hex drive. They seated flush into the tapped holes without any binding, which saved me time on a tight deadline.