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Coupling Nuts
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Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.
Low-Strength Steel
Rated Grade 2 or lower, these are about half as strong as medium-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.
Steel—Best for dry environments since moisture will cause these nuts to rust.
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Thread Size | Lg. | Wd. | Threading | Min. Thread Lg. | 1-9 | 10-Up | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 1 3/8"-6 | 8" | 2 1/4" | Partially Threaded | 3 7/8" | 000000000 | 000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
