Mutual Screw & Supply

M3-0.5 X 18mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Zinc Plated (600 / Pkg.)

M3-0.5 X 18mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | - Main image
$28.14 $45.39 In stock

These M3-0.5 x 18mm socket cap screws are manufactured from Alloy Steel Zinc Plated, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Zinc Plated
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 18mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • 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 (5.0 / 5 · 5 reviews)

Emily ★★★★★

I needed a bulk pack for a jig I've been building, and the 12.9 alloy steel feels noticeably tougher than the usual 18-8 stuff. The zinc plating is even and should hold up well.

Carter ★★★★★

The hex socket drive is cleanly machined, so the Allen key grabs firmly without any slip. For the price per piece, having 600 fully threaded 12.9 alloy steel screws in one box is a solid deal for any tooling bench stock.

Sebastian ★★★★★

Installing these into a jig I'm building, I noticed how consistently tight the threading is across the whole batch—really cut down on assembly time. The zinc plating on each screw looks even and clean, which should help with rust in the long run.