Square Weld Nuts are four sided square body nut fasteners with 4 projection at each corner of thesquare, for welding purpose. Square weld nuts are also known by square projection weld nuts Square weld nut dimensions are defined in both metric and imperials sizes with unifed nationacoarse pitch (UNC), fine pitch (NF), fixed pitch (UN) and iso metric thread profile. These are produced across all material categories and astm specifications.
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