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If you need a reliable locking nut that stays put, these 1/2-13 serrated flange nuts are a solid choice.
They're made from 18-8 stainless steel (304 grade) with a bright finish – so they resist corrosion and look clean.


Threads are 13 per inch, standard 1/2-inch size, and they meet DIN 6923 specifications.



Good quality hardware that won't rust or strip easily.



4.9 out of 5