Mutual Screw & Supply

M3 Internal Tooth Lock Washers | 18-8 Stainless Steel (2000 / Pkg.)

M3 Internal Tooth Lock Washers | 18-8 Stainless Steel (2000 / Pkg.) - Main image
$7 $10 In stock

These M3 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: M3
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Thread size: M3
  • Measurement type: Metric
  • Pack quantity: 1000 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 (4.4 / 5 · 5 reviews)

Eli ★★★★★

Vibration has been a constant headache on my CNC enclosure until I swapped in these 18-8 stainless washers. The 2000-count box feels like a lifetime supply, and they sit snug under M3 screws without any give.

Jason ★★★★★

I needed a bulk pack of M3 washers for an electronics project and these 18-8 stainless steel ones feel solid—the internal teeth grip nicely into the fastener. No issues with corrosion or slipping so far, and at 2000 pieces per package it’s a great value for frequent builds.

Samuel ★★★★★

The internal teeth really dig into the screw head and the stainless steel feels solid. I used them on a small CNC project and haven't had any loosening issues despite the constant vibration.