Mutual Screw & Supply

MS21042-08 | Mil-Spec Self-Locking Nuts | Steel (50 / Pkg.)

MS21042-08 | Mil-Spec Self-Locking Nuts | Steel (50 / Pkg.) - Main image
$6.8 $10 In stock

These self-locking nuts are manufactured from Steel. They are well suited to securing fasteners against vibration loosening.

  • Material and finish: Steel
  • Applications: Securing fasteners against vibration loosening

Specifications

  • Product type: Self-Locking Nuts
  • Material: Steel
  • Finish: Plain
  • 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 (4.0 / 5 · 5 reviews)

Hazel O. ★★★★★

Came loose after two weeks on a vibrating pump mount, so I swapped in these self-locking nuts and haven't had to touch them since. The steel feels solid, and the locking collar really grips the threads—no more re-tightening every few days.

Avery U. ★★★★★

Used these on a shaky trailer hitch assembly and the self-locking feature kept everything tight even after a long road trip. The steel build feels solid and the pack of 50 should last me through multiple projects.

Thomas ★★★★☆

Used these on a motorcycle engine mount and they've held tight through a few rides so far. The steel build feels solid and the self-locking mechanism works as intended, though I wish the package had a few more nuts for the price.