Mutual Screw & Supply

9/16 Split Medium Lock Washers | Steel Black Zinc (100 / Pkg.)

9/16 Split Medium Lock Washers | Steel Black Zinc (100 / Pkg.) - Main image
$6.4 $10 In stock

These #9 lock washers are manufactured from Steel with a black zinc finish. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel, Black Zinc finish
  • Thread size: #9
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Black Zinc
  • Thread size: #9
  • Measurement type: Imperial
  • 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.

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)

Julian B. ★★★★★

The black zinc finish on these #9 washers really holds up—installed a set on my trailer hitch and they haven't budged after a month of gravel roads. Perfect for keeping bolts snug under constant vibration.

Claire ★★★★★

I needed a reliable way to keep my mower deck bolts from loosening, and these washers' black zinc finish seems tough enough to handle the moisture and vibration. The split in each one grabbed the fastener threads securely during installation, which gave me confidence they'll stay put.

Emma ★★★★★

These washers fit perfectly on my project and the black zinc finish looks great against the dark hardware. They held tight even after I tested them with a power tool running for a few minutes, no loosening at all.