Mutual Screw & Supply

M4 Split Medium Lock Washers | Steel Trivalent Zinc (100 / Pkg.)

M4 Split Medium Lock Washers | Steel Trivalent Zinc (100 / Pkg.) - Main image
$7 $10 In stock

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

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

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Trivalent Zinc
  • Thread size: M4
  • Measurement type: Metric
  • Pack quantity: 50 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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If you need a refund

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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)

Lucy ★★★★★

Used a full pack of these on a custom bracket assembly and every washer seated perfectly without slipping sideways. The steel feels substantial enough to hold up under repeated vibration, exactly what I needed for shop equipment.

Scarlett ★★★★★

The trivalent zinc finish on these lock washers looks clean and seems more corrosion-resistant than plain steel ones I've used before. They bite into the nut nicely and held my equipment frame steady after a week of constant vibration.

Claire X. ★★★★★

Installed these on a shaky shelf bracket and the vibration issue is completely gone. The trivalent zinc coating looks clean and seems like it'll resist rust well.