|A1310 Technology mansion EGO,Central west road No. 500, JiaxingCity Chinaemail@example.com|
|Place of Origin:||Zhejiang, China|
|Model Number:||DIN 6921|
|Minimum Order Quantity:||2000 pcs|
|Packaging Details:||carton and pallet customize|
|Payment Terms:||L/C, T/T, Western Union|
|Supply Ability:||400 ton per month|
|Product Name:||A2-70,A4-80 Stainless Steel Hex Flange Bolt DIN6921 (SS304 SS316 316L)||Material:||Stainless Steel|
|Color:||Plain||Head Style:||Hex Flange Head|
|Thread Style:||Right Hand||Drive Style:||Head Socket|
Plain Color DIN6921 Stainless Steel Bolts , Hex Flange Bolt With 50mm Length
Stainless steel hexagonal flange bolts, made of stainless steel material, the standard is DIN6921. Flange bolts are made of hexagonal head and flange. They are used to fasten and connect the through hole parts of two bolts. According to the position of flange bolts, the size and requirements of discs are different, and the anti-slip effect of flattened teeth and teeth are also included. The surface color is of color. It can also be divided into white, green, yellow and corrosion resistant Dacromet coatings according to different needs. The company operates fasteners for many years, has rich experience, high quality, and has a professional testing agency, providing relevant testing certificates, and can be customized according to customer needs and drawings. Customers are welcome to come to consult and buy.
|Item Weight||it depends on length|
The head of hexagonal flange bolt is composed of hexagonal head and flange face. The word ratio of support area to stress area of hexagonal head bolt is larger than that of ordinary hexagonal head bolt. Therefore, this kind of bolt can withstand higher preload and has better anti-loosening performance. Therefore, it is widely used in automobile engines, heavy machinery and other products. Bolts with holes and grooves in the head of hexagonal head can be locked by mechanical method in order to prevent loosening and reliability.
1 Flange connections may have to withstand high tensile, compressive, torsional, and shear strength. Carbon steel flanges are a good choice. The nominal pressure is determined not only according to the highest working pressure, but also according to the highest working temperature and material characteristics, not just the nominal pressure greater than the working pressure.
2. A flange is a connection between two large diameter pipes, usually two flanges plus a number of fastening bolts. Carbon steel flanges are flanges made of carbon steel. Low-carbon steel has good plasticity and low strength. When a proper amount of carbon is added, it becomes hard and the plasticity is reduced.
5.Specification for bolts with six angles and flanges
GB/T5789-1986 six angle flange face bolts increase B series.
GB/T5790-1986 six angle flange face bolts increase series thin rod B class.
GB/T16674.1-2004 six angle flange face bolts small series
GB/T16674.2-2004 six angle flanges bolts, thin teeth series
Six angle flange face bolts national standard GB/T16674.2-2004
The specification of thread is M8*1-M16*1.5, fine thread, performance grade is 8.89.8 10.9 12.9 and A 2-70, product grade is A small hexagonal series fine teeth.
Marking method according to GB/T1237 regulations
Thread specification d=M12*1.25, fine thread, nominal length L=80mm, F or U type selected by the manufacturer, performance grade 8.8, surface oxidation, product grade A small hexagonal series hexagonal flange face bolt marking
Bolt GB/T16672.2 M12 * 1.25 * 80