Mutual Screw & Supply

3/8 Split Medium Lock Washers | Steel Zinc Yellow (1000 / Pkg.)

3/8 Split Medium Lock Washers | Steel Zinc Yellow (1000 / Pkg.) - Main image
$43.2 $60 In stock

These #3 lock washers are manufactured from Steel with a cadmium yellow finish. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel, Zinc Yellow finish
  • Thread size: #3
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Zinc Yellow
  • Thread size: #3
  • Measurement type: Imperial
  • 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 (4.6 / 5 · 5 reviews)

Madison Y. ★★★★★

Used a full box of these on a trailer rebuild, and the zinc yellow finish made them easy to spot while I was sorting hardware. They held tight under some rough gravel roads with no signs of loosening at all.

Emily B. ★★★★★

Installed a full set on my motorcycle’s sway bar mounts and not a single one has backed out after a week of bumpy roads. The cadmium yellow finish is exactly what I needed to match the OEM hardware.

Mia ★★★★★

I needed a bulk pack of lock washers for a vibration-prone machine rebuild, and these 3/8 split washers held tight even during initial test runs. The cadmium yellow finish looks consistent across all 1000 pieces, no flaking or uneven coating.