Mo-Clamp 1320 Slim Line Sill Hook (4-Ton Capacity). Use this new hook from Mo-Clamp to pull front hinge pillars, center pillar posts, rear hinge sections or any location where you need a broad, thin pulling surface. Made from Mo-Clamp Tru-Tuff drop forged, heat treated alloy steel with a pulling capacity of a full 4 tons. Heavy duty eye nut allows easy connection with Mo-Clamp chain and slip hooks. Specifications: Throat depth - 4-3/4", Overall length - 11-1/2", Capacity - 4-tons.