Mutual Screw & Supply

M5-0.8 X 18mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M5-0.8 X 18mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$27 $36.98 In stock

These M5-0.8 x 18mm 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: M5-0.8
  • Length: 18mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 18mm
  • Measurement type: Metric
  • Pack quantity: 600 per package
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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 (4.4 / 5 · 5 reviews)

Grace ★★★★★

All 600 screws came in one neat box, and the hex socket drive seats perfectly every time so far. Used them to rebuild a small jig at my shop and the 12.9 alloy steel feels seriously solid for the price. Definitely stocked up for future machine work.

Riley ★★★★★

Bought these for a precision fixture assembly, and the Class 12.9 alloy steel feels noticeably tougher than the standard hardware I've used before. The black oxide finish took a bit of oil to look consistent out of the package, but once installed they hold torque perfectly without stripping.

Ava L. ★★★★★

Used these to rebuild a jig for my CNC machine and every single screw threaded in smooth without binding. The black oxide finish looks great and hasn't shown any wear after a week of use. Exactly what I needed for precision assembly work.