A-P13X100-AI Roll Pin, 13 MM x 100 MM, 2 packTwo New Aftermarket Replacement Roll Pins, 13 MM x 100 MM A&I Products (A P13X100) This listing includes a pack of two aftermarket replacement roll pins measuring 13 mm O. D. x 100 mm length. Roll pins (also known as slotted spring pins) are common fasteners used throughout agricultural equipment securing blades, shafts, linkages, and pivot assemblies on disc mowers, hay tools, and related machinery. This part is manufactured by A&I Products (A&I) to