Please note, the silver ferrules shown in the second picture and the wood displays and tap handles in the third and fourth pictures ARE NOT INCLUDED! Lot of 50 hanger bolt mount screws. 3/8-16x 1 1/2 for beer tap handle display the 3/8-16 size and the smaller 5/16-18 size. There are generally 2 different sizes of hanger bolts used to make beer tap handles in the beer industry.