Lawnmower Blade for AYP Sears Mowers 42" Cut 139775Product ReviewP Click on the link for more reviewsPMade to meet or exceed FSP specifications.P21-516" Long, 2-14" Wide, .150" Thick, 5 Point Star Mounting HolePMade with high carbon steel, heat hardened.PNewer mowers need the .150 thick blade to tighten properly, the .134" blades may not work.