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494509 SKU No.
Inner Link (Two Rollers) for
Nickel Plated
Single Strand Roller Chain
12B ISO Number
19.05 mm Pitch (P)
11.68 mm Between Inner Plates (b1)
12.07 mm Roller Diameter (d1)
22.7 mm Over All Chain Width (I)
3/4x7/16 Chain Size Designation