This is a triple set of wheat penny tattoo machine parts. The set comes in all 8/32 Threading brass screws. The set includes a 5/8" wheat penny vice Screw, a 1" wheat penny contact Screw, and a wheat penny spring shelf washer that has a # 8 hole. The screws have been silver soldered and are strong to last a lifetime of use. Please write with any questions and buy with confidence.