DIN7981 DIN7982 DIN7983 Screw Flat Head Pan Head Self Tapping Screw teel Zinc Plated Self Tapping Screw/Self Drilling Screw Chipboard Screw/Hex Head Screw/Pan Head Screw

Generally, it is the wood screw with fingertip head, thick teeth and hard texture, as well as aluminum alloy and plastic. A special type of self-tapping screw used to open threads in metal holes is called a tap. Self tapping screws for non-metal or soft metal, do not need to hit the bottom hole and tapping; Self tapping screws are pointed, so as to "self tapping"; Ordinary screws are flat - headed and of the same thickness. Self tapping screw is to say: drill holes without tapping holes, the screw and the general difference, the head is pointed, the tooth distance is relatively large, and the chip free wire tapping is a bit like, can not tap directly screw in, metal and plastic usually use this method. It can be consolidated on the material, relying on its own thread, will be consolidated body "tap - drill, squeeze, pressure" out of the corresponding thread, so that it closely with each other

Products Details

Handan Chang Lan Fastener Manufacturing Co., Ltd. formerly Yongnian Tiexi Changhe fastener factory was large-scale standard fastener manufacturer in Yongnian District. The company is located in standard fastener distribution center of Hebei Yongnian, covering an area of 3,050 square meters, was close to Tianjin Port and Qingdao ports, export is very convinedtly. The company has multi position cold heading machine, model 12b, 14b, 16b, 24b, 30b, 33b; has hot forging machine, model has 200 tons, 280 tons, 500 tons, 800 tons;Has a variety of supporting equipment, including rolling machine, rolling machine, oil press, etc. for bolts, nuts, double stud bolts , foundation bolts and complete product testing equipment. With an experienced technical research and development team, high-quality management personnel and spacious production environment.Self tapping screw is a kind of screw with drill bit, through the construction of special power tools, drilling, tapping, fixing, locking completed at a time. Self tapping screws are mainly used for connection and fixation of some thin plate parts, such as color steel plate and color steel plate connection, color steel plate and purlin, wall beam connection, etc Self tapping screw hardness is high, thread spacing is wide, thread depth, the surface is not smooth, wood screw is on the contrary, another difference is more obvious, wood screw after the segment without thread. Wood screw thread thin, blunt and soft point. Tapping screw threads are thick, sharp and hard. Thread Forming self-tapping Screws are directly developed from iron Screws. Before using screw Forming self-tapping Screws, holes should be drilled in advance, and then Screws are screwed into the holes and forcefully extruded to match the female threads. The materials originally in the position of the female threads will be squeezed between the male threads. Can only be applied to thin and plastic materials, so also developed; Thread Cutting Tapping Screws -- One or more Cutting openings are cut at the end of the threads so that the mating negative threads can be cut using screw tails and teeth in a screw Tapping manner when screwing the pre-holes. It can be used in thick plates, relatively hard or fragile materials that are not easy to shape.
Product name Tapping Screw
Brand CL
Product model M6-200
Surface treatment Black、galvanized、Hot dip galvanized
Material Carbon steel
Standard DIN、GB
About the material Our company can customize other different materials different specifications can be customized

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