Making a last minute chassis adjustment before going on the track is quick and easy with this weight jack bolt. All you need is a 1/2 inch ratchet. This steel weight jack bolt is fine thread, 8 inches long, 1 1/8 inches in diameter and is cad plated. One end is drilled and threaded for a bolt to hold a spring cup and the other end is made for a 1/2 inch ratchet.