This #120H Heavy roller chain fully meets all ANSI standards and is a durable, economically priced roller chain that has a tensile strength of 36,300lbs. The Economy Plus series roller chains feature heat-treated side plates to ensure the strength and durability of the roller chain. This roller chain also features solid rollers which will increase the performance and overall working life of the chain. The "H" designates that his chain has thicker side plates and is part of the heavy series of roller chains. Having the thicker side plate increases strength, shock load, fatigue, and the overall working life of the chain. Economy Plus #120H roller chain is commonly supplied as 10ft boxes, but alternate lengths are available per request. We offer additional connecting links and offset links for this chain as well, which having a few of these on-hand can keep you out of a down situation and keep you up and running. Another thing that extra connecting links and offset links are good for is making those miscellaneous repairs that need to be done to keep you in operation. We also offer a full line of high quality sprockets for this chain ranging in teeth count and bore sizes. For more information on the Economy Plus Series #120H Roller chain or any of its accessories that we offer, please contact us and we will be happy to assist you.