Mutual Screw & Supply

MS21042-02 | Mil-Spec Self-Locking Nuts | Steel (100 / Pkg.)

MS21042-02 | Mil-Spec Self-Locking Nuts | Steel (100 / Pkg.) - Main image
$50.92 $76 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: 100 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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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)

Christopher ★★★★★

The lock washer design on these nuts did exactly what I needed—they held tight on a trailer hitch bolt where standard nuts kept backing off. No more rattling loose after a few miles of rough road.

Olivia ★★★★★

Used these on a bracket that kept shaking loose every few weeks, and they've held rock solid through a month of daily vibration. The nylon insert grabs tight but still lets me back them out with a wrench when I need to.

Joseph ★★★★★

The steel feels really solid, and these nuts held tight on my ATV's suspension bolts through a weekend of rough trails. I appreciate how the nylon insert locks them in place without needing threadlocker.