Mutual Screw & Supply

MS21042L06 | Mil-Spec Self-Locking Nuts | Steel (250 / Pkg.)

MS21042L06 | Mil-Spec Self-Locking Nuts | Steel (250 / Pkg.) - Main image
$68.61 $103.95 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: 250 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 (4.8 / 5 · 5 reviews)

Joshua W. ★★★★★

Finally got around to replacing all the rusty nuts on my trailer suspension with these, and the self-locking feature held perfectly after a bumpy test drive. The steel feels substantial and the threads engaged cleanly right out of the bag.

Alexander ★★★★★

Used a full pack of these on an ATV rebuild, and not a single fastener has backed out after a month of rough trails. The steel nuts lock tight without any thread-locker, which saved me time.

Natalie V. ★★★★★

The threads were clean and consistent across all 250 nuts, which made installation smooth without any cross-threading. These have held up well on a bracket that sees constant vibration from a nearby motor.