Yongnian County, Yuan Long Fastener Manufacturing Co., Ltd. is engaged in the production of specialized companies screw rings, located in Longquan Yongnian County, Handan City, Hebei Industrial Zone, convenient transportation. Yuan Long hanging mother founded in 2000, after several years of development, the combination of training a large number of technical personnel and management team. General Hardware industry in the development, we mainly provide for the needs of groups of rings, screws and other industrial products. Mainly in stainless steel; carbon steel rings, screws and other materials General Hardware products mainly, its main purpose is to assemble motor parts, marine accessories. Model variety, mainly QM8321 mainly weight of 1kg, product range, high quality and low cost can be supplied according to customer requirements. Caution: screw rings must be mounted vertically with the workpiece plane and joints need to be smooth, tight bonding required. Must adjust to the stretching direction, screw avoid contact with sharp edges of objects. Must strictly comply with the rated load, excessive use of frequent use and overloading are not allowed. Advantages: quality and stability, complete specifications, adequate cargo, inexpensive method of choice hanging mother, shipping convenience features: overall forged rings, screws, and after normalizing treatment and removal of oxide; forgings no burnt, crack defects; screw rings After unification hardness test, hardness values ??HRB67 ~ 95. Screw rings crown force strength rating 12.9. Smooth appearance mother hanging up there with no cracks defects, durable corrosion rust, strong efforts to fight. Yongnian County, Yuan Long Fastener Manufacturing Co., Ltd. is a store brand reputation, excellent reputation in the industry, new and old users alike. Its long-term supply of quality steel wire rope hanging mother chuck GB difference with ordinary hanging mother, reasonable price, high quality, complete specifications, is worthy of the trust of customers it supplies. I plant comprehensive services, providing rope chuck the latest market price reports, specifications table, manufacturers, suppliers, products may direct wholesale and retail, welcome to come to discuss cooperation! Screw rings referenced standard G 699 vivid quality carbon steel steel guide and general technical conditions GB 196 GB 197 common thread basic dimensions common thread tolerance and cooperation GB 230 metal Rockwell hardness test externally threaded fasteners B2 end parts GB GB 5267 Threaded fasteners fasteners plating GB 1237 GB 90 fasteners labeling method acceptance inspection, marking and packaging YB 27 Determination of grain size steel rings hanging female screw size selection method, Shouguang hanging mother, Yuan Longte large processing by Yongnian County Yuan Long Fastener Manufacturing Limited. Yongnian County, Yuan Long Fastener Manufacturing Co. (www.hdyljgj.com) strong, credible, in Handan fastener industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yuanlong fasteners and you hand into the brilliant, for a better future!