This listing is for 1 set. 1 shelf washer and 1 vice screw. This is a set of Brass Cinco Centavos tattoo machine parts. The set comes in all 8/32 Threading brass screws. It includes a 5/8” Cinco Centavos vice Screw, and a Brass Cinco Centavos 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.