Amazon.com: Ametric® 085 ISO, 10 Foot Box, Single Roller Chain, 48X10FT Ametric® Part No, 12.7 mm Pitch(P), 6.4 mm (b1), 7.75 mm (d1), 15.4 mm (I), 1/2x1/4, 3.97 mm Pin Dia,(1-005) : Industrial & Scientific
Single Strand Roller Chain 140-1-140-1
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Roller Chains – ANSI, DIN and BS Standard for Multi Conveyor Belts