Mutual Screw & Supply

M5 External Tooth Lock Washers | 18-8 Stainless Steel (800 / Pkg.)

M5 External Tooth Lock Washers | 18-8 Stainless Steel (800 / Pkg.) - Main image
$7.4 $10 In stock

These M5 lock washers are manufactured from 18-8 Stainless Steel. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: 18-8 Stainless Steel
  • Thread size: M5
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Thread size: M5
  • Measurement type: Metric
  • Pack quantity: 100 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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When it ships

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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 (4.6 / 5 · 5 reviews)

Steven ★★★★★

I've been using these M5 lock washers on a small robotics project where vibration was a constant issue, and they held everything solid. The 18-8 stainless steel feels durable and corrosion-resistant, which is perfect for outdoor use. Really glad I bought the bulk pack of 800.

Henry U. ★★★★★

The 18-8 stainless steel gives me real peace of mind on my motorcycle’s exhaust bracket—no rust after a month of rain. With 800 in the bag, I’ve got plenty for every mounting job that comes up.

Violet O. ★★★★★

I was worried about vibration loosening my mower deck bolts, but these M5 washers dig in perfectly. The 18-8 stainless feels solid and corrosion-resistant. A full bag of 800 means I won't need to reorder for years.