50A21H-SB Type A Plate Sprocket for #50 Roller Chain - 21 Tooth - 3/4" Stock Bore Connecting Link 1/4" KW - 3/8-16 x Size:M-4-7/16" 501 Attachment Width 50B19H-SB 7S FLEX
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21