John Deere-style premium aftermarket hexagonal bolt. Part reference 19M8288. Size/application: M24 x 90 JD Hexagonal Bolt. Corresponding nut reference: 14M7278. General heavy-equipment fastening hardware for the matching assembly. Brand compatibility: John Deere and premium aftermarket systems built to the matching John Deere specification. Standardized dimensions may also fit other major brands when diameter, thread, length and seat are identical. Confirm strength grade, thread pitch and installed length.