Mutual Screw & Supply

1/4 High-Collar Lock Washers | Steel Black Oxide (4000 / Pkg.)

1/4 High-Collar Lock Washers | Steel Black Oxide (4000 / Pkg.) - Main image
$6 $10 In stock

These #1 lock washers are manufactured from Steel with a black oxide finish. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel, Black Oxide finish
  • Thread size: #1
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: Steel
  • Finish: Black Oxide
  • Thread size: #1
  • Measurement type: Imperial
  • Pack quantity: 2000 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)

Jacob Y. ★★★★★

I needed a bulk pack for rebuilding a shaky assembly line fixture, and these 4000 washers are perfect. The black oxide coating looks even and should hold up well against moisture in the shop.

Andrew ★★★★★

Black oxide finish on these washers resists corrosion nicely, and the 1/4-inch high-collar design gripped my bolt securely during a heavy-duty assembly test. The full box of 4000 will stock my workbench for a long time—definitely got my money’s worth here.

Joshua ★★★★★

Box of 4000 is exactly what my shop needed, and the steel feels solid under the thumb. I've torqued a few test joints with them and the black oxide finish hasn't flaked or rusted after a week in a damp garage.