Din 6921 Full Thread Carbon Steel Flange Bolt 4.8 Grade 8.8 Yellow Zinc White Zinc

Din6921 flange bolt

Product description

1: Flange bolt is an integral bolt composed of hexagon head, flange plate (gasket under hexagon and hexagon fixed integral) and screw (cylinder with external thread). It needs to be matched with nut to fasten the parts connecting two through holes.

2: Flange bolt is an integral bolt composed of hexagon head and flange plate (gasket under hexagon and hexagon fixed integral) and screw (cylinder with external thread). It needs to be matched with nut to fasten the parts connecting two through holes, so bolt connection belongs to removable connection

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1. Hexagonal head type: one is flat brain, the other is concave brain.

2. Surface color category: according to different needs, the surface has white plating, military green, color yellow, corrosion-resistant Dacromet.

3. Flange plate type: according to the use position of flange bolts, the size requirements of the plate are different. There are also flat bottom and toothed, and the toothed ones play an anti-skid role.

4. According to the stress mode of connection, there are ordinary and reaming holes The flange bolts used for reaming holes should match the size of the holes and be used when subjected to transverse forces.

In addition, in order to meet the needs of locking after installation, there are holes in the rod, which can prevent the bolt from loosening when it is vibrated

Some plain rod parts without thread of flange bolts should be made, which are called thin rod flange bolts This kind of flange bolt is beneficial to the connection under variable force