Threaded Bar Studding Threaded BAR / ROD ZINC PLATED/AUTO BLACK. 5/16-24 UNF Thread (12" LONG)YELLOW ZINK PLATED. 5/8-24 UNF Thread (12" LONG) AUTO BLACK PLATED. 1/2-20 UNF Thread (12" LONG) YELLOW ZINK PLATED.
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