HKK BS08BR1AB ISO 08B Single Strand British Standard Chain, Riveted, 1/2" Pitch, 0.335" Roller Diameter, 0.305" Roller Width, 20 Foot Length

HKK ADC040CCL1 ANSI C2040 Single Strand Aqua Series Connecting Link, Standard Type, Double Pitch, Cottered, 1" Pitch, 0.312" Roller Diameter, 5/16" Roller Width (Pack of 5 links)

HKK SBS08BCHL1 ISO 05B Single Strand British Standard Connecting Offset Link, Cottered, Stainless Steel, 1/2" Pitch, 0.335" Roller Diameter, 0.305" Roller Width (Pack of 5 links)