A2 70 A4 80 M8 DIN7991 Stainless Steel Hex Socket Countersunk Head Screws
Welding Machine，Gasoline Welding Machine，Welding Generator Huatian Diesel Engine Co., Ltd. , http://www.wfdieselengine.com
Countersunk head screws mostly used in the need to install a raised surface of the part can not place the fastening parts there are two kinds of thickness, the so-called thick, that is fastened to the parts is greater than the thickness of the head of the countersunk head screw thickness after tightening the screw, there is no part of the screw threaded into the threaded hole. This situation, certainly countersunk head screws tightened. Typically there is a situation that is fastened to the part thickness smaller than the height countersunk screw head, which is common in sheet metal parts in machinery and equipment, such as a hinge and the cabinet doors and the coupling of the chassis; sheet metal equipment housing and coupling devices and so on. 
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Jiaxing Haina Fastener co. Ltd was established in 2010, located in the hometown of fasteners jiaxing city. For many years of export experience, our products has been best-selling in Europe, the United States, the Middle East and Southeast Asia. The products are manufactured by more functions machine, which is brought in domestic and foreign well-known enterprises. The products made are fully compatible with the international standards, well received by domestic and foreign customers. Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.
Countersunk head screws mostly used in the need to install a raised surface of the part can not place the fastening parts there are two kinds of thickness, the so-called thick, that is fastened to the parts is greater than the thickness of the head of the countersunk head screw thickness after tightening the screw, there is no part of the screw threaded into the threaded hole. This situation, certainly countersunk head screws tightened. Typically there is a situation that is fastened to the part thickness smaller than the height countersunk screw head, which is common in sheet metal parts in machinery and equipment, such as a hinge and the cabinet doors and the coupling of the chassis; sheet metal equipment housing and coupling devices and so on.Â
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