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U bolt, because of the shape of the alphabet u terms that should be capitalized and named. U type of bolt used widely, Main: the construction and installation of mechanical parts connecting the vehicle bridge tunnel railway, etc.. The main and semi circular square right angle triangle oblique triangle, etc..,
Information: Basic
1, material properties, bending strength, impact toughness, compressive strength, elastic modulus, tensile strength, temperature resistance, color according to the use of environmental determination.,
2, commonly used carbon steel Q345B Material; alloy steel Q235A , Stainless steel material of which etc.. 321, 201304, 304L, 316,, 316L,
3, bolts national standard: JB/ZQ4321-1997 U,
4, of material Texture,
Type bolt according to material of carbon steel Q235 Q345, alloy steel, steel Stainless 201304316, it is carbon steel and stainless And steel.. U,
