Mutual Screw & Supply

7/16 Split Medium Lock Washers | 18-8 Stainless Steel (100 / Pkg.)

7/16 Split Medium Lock Washers | 18-8 Stainless Steel (100 / Pkg.) - Main image
$6.3 $10 In stock

These #7 lock washers are manufactured from 18-8 Stainless Steel. They are well suited to preventing fastener loosening under vibration.

  • Material and finish: 18-8 Stainless Steel
  • Thread size: #7
  • Applications: Preventing fastener loosening under vibration

Specifications

  • Product type: Lock Washers
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Thread size: #7
  • 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.

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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)

Sebastian ★★★★★

Installed these on a lawnmower deck that had been rattling bolts loose for months — haven't had a single fastener back out since. The 18-8 stainless feels solid, and the split design really grabs tight under vibration.

Penelope ★★★★★

These lock washers are the perfect solution for keeping bolts tight on my lawnmower, and the 18-8 stainless steel means they won't rust out like the old ones did. They split just right to grab the fastener and hold firm even with all that vibration.

Harper ★★★★★

Installed these on a motorcycle kickstand spring mount and they held tight through a week of bumpy backroads without any loosening. The 18-8 stainless steel feels solid and should resist rust well in the weather.