Complete assortment of Chrome plated grade 8 button head Torx screws. Torx head screws are the ultimate replacement for Allen screws, they provide more contact area between the bolt and the key which eliminates the chance of damaging the socket head. The assortment box contains 200 pieces (sizes as listed below) in both coarse (UNC) and fine (UNF) thread. Each size can also be ordered in 10 packs as listed.