The company’s main business is screws.Mainly composed of three combination screws of spherical cross,eleven,inner hexagon,outer hexagon,etc,screw specifications vary from 3:5 to3;30,from 4:5 to 4:30,from 6:8 to 6;30.We can provide the corresponding product size according to the customer needs for the product,flat gasket are all of sizes and are available in stock , and the goods will be delivered on time.The cross grooves for screws are all custom made.It can be customized according to the customer needs for the product. The corresponding size screw for the corresponding automatic screwdriver . The products produced are of high quality and high craftsmanship .The company’s kind of screws are deeper and deeper ,the threads are relatively deep.It is very convenient to use and east to operate ,so that the product is closely combined with the screw ,and the product has the advantages of long time, high quality and wide range of application.