This assortment kit includes 12 of the most common sizes of type 316 stainless steel phillips flat head sheet metal screws. The sizes included are: #6 x1/2, #6 x 3/4, #6 x 1, #6 x 1-1/2, #8 x 1/2, #8 x 3/4, #8 x 1, #8 x 1-1/2, #10 x 1/2, #10 x 3/4, #10 x 1 & #10 x 1-1/2". A total of 275 top grade stainless flat head sheet metal screws all neatly stored in a durable (7"x4"x1-1/2") Tuff-Tainer storage box.