Description Koch Industries 7660031 #60-H Roller Chain Offset LinkFor use in connecting or repairing standard and heavy series roller chain.Koch Industries 7660031 #60-H Roller Chain Offset Link Features: Meets ASME/ANSI B29.1 standards Offset links can be used to join 2 pieces of chain by 1 pitch increment Pitch 3/4" 3 count.