High-quality untainted steel tapping screws type : phillips two-dimensional head tapping screws Material : squeaking lineament 304 untainted steel Package quantity : 275 Piece Set includes : # 6 x 3/4 '' ... 55 piece # 6 x 1 '' ... 50 piece # 8 x 3/4 '' ... 40 piece # 8 x 1 '' ... 40 piece # 8 x 1-1/2 '' ... 30 piece # 10 x 1 '' ... 30 piece # 10 x 1-1/2 '' ... 20 piece # 12 x 2 '' ... 10piece This set is organized by size/type in a gossamer storage case for immediate access and protection .