Mutual Screw & Supply

#5-40 X 3/4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully Threaded | Alloy Steel Thermal Black Oxide (300 / Pkg.)

#5-40 X 3/4" Socket Cap Screws | Hex Socket Drive | Nylon Patch | Fully - Main image
$39.11 $52.14 In stock

These #5-40 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 style: Fully Threaded
  • Thread size: #5-40
  • 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 style: Fully Threaded
  • Thread size: #5-40
  • Length: 3/4"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 300 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)

Charlotte ★★★★★

I’ve got a jig that’s been a pain to keep aligned, and these threaded in with no binding thanks to that nylon patch. The black oxide finish looks tough and hasn’t shown a hint of rust after a week of shop use. Pack of 300 means I’m set for a while.

Charlotte H. ★★★★★

The hex socket drive grips the Allen key perfectly, no stripping or wobble when I torqued them down on my jig. All 300 arrived with the nylon patch intact and the black oxide looks sharp against the steel fixture.

William ★★★★★

The thermal black oxide finish on these #5-40 screws gives them a nice, consistent look that resists wear in my jig setups. They fit the hex socket perfectly without any wobble, and the 300-count box should last me through several projects.