Mutual Screw & Supply

HOLO-KROME 730000500 #6-40 X 1" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (25 / Pkg.)

HOLO-KROME 730000500 #6-40 X 1" Socket Cap Screws | Hex Socket Drive | Alloy - Main image
$25.36 $41.58 In stock

These #6-40 x 1" 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: #6-40
  • Length: 1"
  • 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: #6-40
  • Length: 1"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 25 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 (5.0 / 5 · 5 reviews)

Christopher ★★★★★

I needed some strong fasteners for a small robotics project, and these #6-40 screws fit perfectly into tight spaces. The black oxide finish is even and seems durable, and they threaded cleanly into tapped holes without any binding.

Scarlett ★★★★★

Picked up a pack for a jig I’m building on the mill, and the hex drive seated perfectly without any stripping. The black oxide finish seems to hold up well to light oil exposure too.

Joshua Z. ★★★★★

The black oxide finish on these #6-40 screws gives them a clean, uniform look that matches the tooling I’m building. They thread in smoothly and hold tight without any wobble, and the alloy steel feels solid enough for repeated use in my jigs.