Mutual Screw & Supply

5/16 Split Lock Washers | Steel Black Oxide (1000 / Pkg.)

5/16 Split Lock Washers | Steel Black Oxide (1000 / Pkg.) - Main image
$23.67 $38.8 In stock

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

Specifications

  • Product type: Split Lock Washers
  • Material: Steel
  • Finish: Black Oxide
  • 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)

Daniel E. ★★★★★

The black oxide finish on these washers has held up perfectly during assembly, no chipping or flaking at all. I'm using them on a vibrating machine mount and they've kept everything tight through weeks of use.

James V. ★★★★★

The black oxide finish on these washers is really uniform and seems durable, I've been able to use them in a few projects without any rust issues so far. They fit perfectly on my 5/16 bolts and the 1000-pack should last me quite a while.

Eli ★★★★★

These washers have a nice, consistent thickness that made assembly easy on a bench grinder stand I just built. At this price for a thousand, I won't run out mid-project for a long time.