wood screw: 1) Materials: carbon steel,stainless steel 2) Size:M3-M24 (it's up to the clients) 3) Color:zinc plated,plain woodl screw:1) Materials: carbon steel,stainless steel, copper 2) Size:It's up to the clients.3)Color:zinc,black,plain,black phosphated4)Head type:flat head,pan head,bugle head,truss head,hexagon head5)Recess:philips,slotted,cambo,square,six-lobe,pozi (its up to the clients ...