... .head: Pan, head 2.Material:carbon steel, stainless steel 3.recess: slotted,philips,pozi, pan head chipboard screw:1.Material:carbon steel,stainless steel,brass2.Head type:pan head ... :pozi,philips,slotted,cambo,six-lobe4.Color:zinc plated,black,chrome or nickle plated5.Size:M2 to M246.Packing:plastic+carton or ... chipboard screw is mainly used at the chair,to lock plastic cement.