Caterpillar-style premium aftermarket hexagonal bolt. Part reference 6V9667. Size/application: Bolt M20 x 2.5 x 100mm. Use a matching M20x2.5 high-strength nut; the exact nut reference is not listed in this catalog. General heavy-equipment fastening hardware for the matching assembly. Brand compatibility: Caterpillar and premium aftermarket systems built to the matching Caterpillar 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.