Globe Marine DriveSaver Model 504H Flexible Marine Drive Coupling for Yanmar, Hurth, ZF and Kanzaki 5" Flange Diameter, 4-Bolts, 7/16" bolt diameter, 4-1/4" bolt circle, 2-1/2" pilot diameter, male/female configuration, 5-1/8" coupling diameter, 1" coupling thickness Fits Yanmar & Kanzaki KM5A, ZF 45A, Hurth/ZF HSW 450A &450H 675 ft/lb Engine Torque Rating Grade 8 Hardware Made in the USA