Mutual Screw & Supply

M4 External Tooth Lock Washers | Steel Zinc Plated (3000 / Pkg.)

M4 External Tooth Lock Washers | Steel Zinc Plated (3000 / Pkg.) - Main image
$6 $10 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: 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.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Emma I. ★★★★★

Exactly what I needed for securing a few vibration-prone M4 fasteners on my motorcycle. The zinc plating looks clean and consistent across all 3000 pieces, and they bite nicely under the bolt head. No complaints at all.

Ruby O. ★★★★★

Needed a bulk lot for an automotive project, and these zinc-plated washers are holding up great against a bit of moisture. The 3000 count means I won't run out anytime soon, and each one fits perfectly on the M4 bolts. Exactly what you'd expect for the price.

Daniel ★★★★★

Installed these on a few brackets that kept loosening from machine vibration, and they’ve held rock solid for two weeks now. The steel feels sturdy, and 3000 pieces in a bag is plenty for multiple projects.