Cue Stick - Joint

Joint

The heavy, lower piece of the cue is the cue butt, and the smaller, narrower end is the shaft. The two cue pieces are attached at the joint; normally a screw rising from butt end's joint (male) is threaded into a receptacle on the shaft (female), or vice versa. The joints are made of various materials, most frequently a plastic, brass, stainless steel, or wood outer layer, but some custom cues are made of bone, antlers, or other more expensive materials that are less common, but serve the same effect. Most snooker cues have brass-to-brass joints. The internal male and female connection points are almost always brass or steel because they respond less to temperature changes and thus expand and contract less than other materials, preserving the life of the cue. Joints have different sizes as well as different male and female ends on the shaft and butts of the cues. Traditional designs employ a fully threaded connection, while newer versions (marketed under such names as Uni-loc, Accu-loc and Tru-loc) employ half-threaded "quick pin release" connections that allow players to assemble and disassemble their cues faster.