Mutual Screw & Supply

M4 Internal Tooth Lock Washers | Steel Zinc Plated (2000 / Pkg.)

M4 Internal Tooth Lock Washers | Steel Zinc Plated (2000 / Pkg.) - Main image
$12.78 $18 In stock

These M4 lock washers are manufactured from Steel with a zinc plated finish. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel, Zinc Plated finish
  • Thread size: M4
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Zinc Plated
  • Thread size: M4
  • Measurement type: Metric
  • Pack quantity: 2000 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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)

Hannah Y. ★★★★★

The zinc plating on these M4 washers looks clean and even, and they fit snugly into the recess of my vibration-prone assembly. Installed a batch yesterday and everything stayed tight after a full test run.

Daniel V. ★★★★★

I keep a pack of these in my toolbox for when I'm tightening down brackets on a motorcycle, and they've held up well through two seasons of vibration without a single fastener backing out. The zinc coating is consistent and hasn't rusted after a few wet rides. For the price, you're getting a solid 2

Julian A. ★★★★★

The zinc plating looks uniform across all 2000 pieces, no bare spots or rust starting on any of them. Used a full bag securing motor mounts on a few projects and not a single washer deformed during torquing, which is exactly what I want from internal tooth washers under vibration.