Standard:DIN Product name:black phosphated bugle head self tapping drywall screw Head type:bugle head Thread type:fine or twinfast thread, coarse thread Size:Diameter: 3.5mm-6.3mm; Length: 13mm-200mm Material:C1022, 1022A Surface treatment:black or grey phosphate, zinc plated Packing:25-30kgs/carton,36-48cartons/pallet Certificate:ISO9001:2008 Sample:Available Show More