Customize screws as per sample or drawing
SDM factory have 12 sets automatic screw forming machines and 6 sets thread rolling machines, special screw or bolt according as per customers request are welcome to do. Samples are free for you.
We also can customize special small package as per your request.
SDMP fasteners( screw or bolt) through below process make it with high strength and good ductility performance.
Raw material→Phosphate washing→Head forming→Thread rolling→Heat treatment→plating→Sampling inspection→paking→Delivery
Description: made of carbon steel like as 1018,1045,1022 and so on.
Surface finish: black phosphate, white zince,Hot dip Galvanized.
Our screw widely used in various industrial area.