5/16" .3125 Hot Rolled Steel A36 12"X 12" Sheet Plate If you need holes or specific shapes send us a message and well get you a quote. We supply angle, flat bar, tubing, channel, and other steel products. We stock aluminum, stainless steel, brass, mild steel, hardened steel, and several other products. We offer CNC High Definition plasma cutting holding tight tolerances CNC Oxyfuel cutting Precision Sawing Bending Contact Harness Machine & Fab for more information