Mutual Screw & Supply

M6-1 X 55mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Zinc Plated (200 / Pkg.)

M6-1 X 55mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$41.51 $60.16 In stock

These M6-1 x 55mm 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
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M6-1
  • Length: 55mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M6-1
  • Length: 55mm
  • Measurement type: Metric
  • Pack quantity: 200 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)

Elizabeth ★★★★★

The partially threaded design on these 55mm screws gripped perfectly when I was assembling a custom jig, and the zinc plating gives a nice uniform finish without any burrs. They threaded smoothly into my steel fixture without binding.

Miles ★★★★★

The hex socket drive made installation quick with my Allen key, and the 55mm length was perfect for clamping down a jig plate. The zinc coating looks clean and professional on my assembly table.

Jacob ★★★★★

Used these for a fixture I’m building and the hex socket drive held up perfectly under a torque wrench—no stripping at all. The 12.9 alloy steel feels seriously tough, and the partial threading made aligning the plates a breeze.