Pan head self tapping screw type A threads , flat point and wide pitch , standarded diameter from 1.0 to 8.0mm, 60 degree thead angle , can be used directly to metal sheets . generally , the thinkness of metal sheets below 5mm . Material : Steel Size : 3/16x1/2 Hardness : HRC58 Philips : PH2 Finish : Black oxide Application : Various metal sheets . Other maybe used material : Stainless steel , Brass , Alloy Steel and Aluminum . |