Mutual Screw & Supply

5/16 Split Heavy Lock Washers | Steel Zinc Plated (1000 / Pkg.)

5/16 Split Heavy Lock Washers | Steel Zinc Plated (1000 / Pkg.) - Main image
$19.03 $25.72 In stock

These #5 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: #5
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Zinc Plated
  • Thread size: #5
  • 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.

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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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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 (4.8 / 5 · 5 reviews)

Charlotte C. ★★★★★

Installed these on the mower deck and they held rock solid through a full afternoon of shaking over bumpy ground. The zinc plating is clean and consistent across all thousand pieces, no rust spots after a humid week. For the price, I'll definitely grab another box next time.

Hazel W. ★★★★★

The zinc plating on these washers looks clean and even, and they fit perfectly on my 5/16 bolts for a tractor attachment. I used a full box on a vibrating conveyor frame and haven't had to retighten a single bolt in two weeks.

Aurora N. ★★★★★

Put these on a pallet rack that's been rattling for months and the zinc coating makes them slide into place without binding. Not a single washer has loosened since I snugged them down, which is exactly what I needed for vibration-heavy spots. Solid batch of 1000, no duds in the box.