Tsubaki 40LOTRB ANSI Roller Chain, Single Strand, Riveted, Carbon Steel, Inch, #20 ANSI No., 1/2" Pitch, 0.312 inches Roller Diameter, 0.312 inches Roller Width, 10ft Length ANSI single-strand roller chain for use in a broad range of operational environments Carbon steel components have an operating temperature range of 14 to 302 degrees F Ring coined link plate, grooved bushings, shot peened parts, and pre-lubricated for less initial chain adjustment Meets ANSI B29.1 standard and is Restriction of Hazardous Substances (RoHS) compliant Includes one connecting link for every 10 of chain