Mutual Screw & Supply

MS35333-73 | Mil-Spec Internal Tooth Lock Washers | Steel (1000 / Pkg.)

MS35333-73 | Mil-Spec Internal Tooth Lock Washers | Steel (1000 / Pkg.) - Main image
$75.6 $120 In stock

These internal tooth lock washers are manufactured from Steel. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: Steel
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Internal Tooth Lock Washers
  • Material: Steel
  • Finish: Plain
  • 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 (5.0 / 5 · 5 reviews)

Stella ★★★★★

Installed these on a vibration-prone compressor mount and none of the bolts have backed off after a week of heavy use. The teeth bite into the surface aggressively, which is exactly what I needed.

Christopher ★★★★★

Used a handful to secure a milling machine’s base plate, and the internal teeth really dug in hard—hasn’t budged a millimeter in three weeks of heavy use. The flat, consistent cross-section let them stack neatly without jamming, which saved me time during install.

Evelyn ★★★★★

Had a vibration issue on my workshop drill press that kept loosening standard washers; these internal tooth lock washers grabbed tight and haven't budged since installation. The steel feels solid, and having a full 1000-count pack means I've got plenty left for future projects. Exactly the reliabili