Freedom Aerial Dog Runs Heavy Duty galvanized lag eye bolt with nut and washer for toy sized dogs ranging in weight between 45 and 75 pounds. Overhead cable attachment hardware consisting of a lag eye bolt with machine threads and nut with washer to fasten. This is one component (Attachment Mount) of four total necessary to build a complete aerial dog run. The other three components are the overhead cable, the lead line and the attachment mounting hardware for the second installation point. Lag eye bolt with machine threads can be installed onto any solid object and requires a hole larger than the diameter of the lag bolt to be drilled before inserting. The nut and washer are then utilized to fasten the lag screw eye to the surface. Typical applications include posts, beams and pipes. Made with galvanized steel offering heavy rust and corrosion prevention.