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SparkFun will be closed for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Creative Commons images are CC BY-NC-SA 3.0

Description: Description: These are standard locknuts with 4-40 thread. For use with 4-40 machine screws. They have a nylon insert that allows them to stay tightly in place.

Note: These come in packs of 10.

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Customer Reviews

4 out of 5

Based on 1 ratings:

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Great

they had exactly what I was looking for at a great price. Shipping was quick.