discount 70% in 2018-09-23 to 2018-09-25
price: USD$ 25.20
freight :USD$7.00,(Postal parcel)
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Shanghai Shenli screw Tool Co., Ltd., founded in 1997, mainly engaged in the development and production of screw tools. The annual output reached 15 million pieces, sold well all over the country, and exported to Asia, Europe, America, more than 30 countries.
[pipe thread tap]Pipe thread tap is used to process thread tap. For metric threads to represent the thread pitch, with every inch of the number of threads; metric screw thread is 60 degrees equilateral tooth type, thread is isosceles 55 degree tooth type, thread is isosceles 60 degree tooth type; metric thread metric unit (such as mm), the thread with Imperial units (such as "insiders"); "usually" points "to call thread size, one inch to 8 inches, 1/4 is 2 points, and so on. ISO - Metric thread standard 60 degrees; UN unified thread standard 60 degrees; API - American petroleum pipe thread standard 60 degrees; W - British Standard Whitworth Thread 55 degrees; NPTBSP technology ----NPT, PT, G NPT PT, the difference between threads, G thread PT, G NPT, is a tube the thread.NPT is National (American) PipeThread. The 60 degree taper pipe thread belongs to the American Standard, for North America. The national standard is available on the GB/T12716-1991PT is the abbreviation of PipeThread, is a 55 degree taper pipe thread sealing, belonging to the Whitworth family, for Europe and the Commonwealth countries commonly used in water and gas pipe. Provisions for the industry, taper can be found in the GB/T7306-2000G 1:16. national standard is 55 degrees non thread sealing pipe thread, belonging to the Whitworth family. Mark G stands for cylindrical thread can be found in the GB/T7307-2001 national standard.