50 and 50H roller chain is a 5/8" pitch roller chain. Some of the most common industries that use this chain include Agriculture, Conveyors, Forest Products and poultry processing. 50H, or 50 heavy roller chain is manufactured with a thick side plate to increase the handling ability of the chain. RollerChainSupply.com offers brands such as Diamond Sapphire, John King USA, Senqcia Maxco (Formerly Hitachi) and Allied Locke. Roller Chain Supply is dedicated to bringing you a cost effective solution for your roller chain needs. Not seeing what you're looking for? Give us a call and let our dedicated procurement specialists help you eliminate downtime.