Mutual Screw & Supply

#4 Medium Split Lock Washers | Steel Nickel Plated (5000 / Pkg.)

#4 Medium Split Lock Washers | Steel Nickel Plated (5000 / Pkg.) - Main image
$11.54 $15.38 In stock

These #4 split lock washers are manufactured from Steel with a nickel plated finish. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel, Nickel Plated finish
  • Thread size: #4
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Split Lock Washers
  • Material: Steel
  • Finish: Nickel Plated
  • Thread size: #4
  • Measurement type: Imperial
  • Pack quantity: 5000 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)

Sebastian W. ★★★★★

Got these for a vibration-prone mount on my lathe and they’ve held tight through a dozen runs—the nickel plating also makes them easy to spot during assembly. For 5,000 pieces, the price per washer is unbeatable.

Andrew G. ★★★★★

Bought these for a small robotics project where vibrations are a real issue, and the split lock design on these #4 washers seems to do its job perfectly. 5000 pieces is a lot to get through, but the nickel plating looks even and they haven't caused any corrosion so far.

Chloe ★★★★★

The nickel plating gives these a clean, uniform finish that resists rust better than the plain steel ones I've used before. Five thousand pieces in one package means I won't be running out anytime soon, and they've held tight on my workbench projects so far.