Hex nut are also called hexagonal nut, which commonly h […]
Hex nut are also called hexagonal nut, which commonly have a lot of kinds, hexagonal nut, round nut, square nuts and so on. For some standard nut is clear. Some size standards, material specification standards, plating standards, etc are clear. And there is different standards for different types of nuts.
Hexagon nuts and screws, bolts, screws to cooperate with the use of connection fastening parts. Of the six the most widely used nut, type 1 C nut for surface is rough, the accuracy is not high machinery, equipment or structure; Class A and class B nut used for surface is bright and clean, high requirements for accuracy of the machinery, equipment or structure.Type 2 hexagonal nut thickness M thicker, more used to occasions often require. The thickness of the thin hexagonal nut M thinner, more used to be the surface of the connection parts place restricted space.
Commonly used for hexagonal nut, standard has: GB52, GB6170, GB6172 and DIN934. The main difference among them is that GB6170 is thicker than GB52, GB6172 and DIN934, commonly known as for thick nut. Another is about the difference of edge between the the M8 series of nut DIN934, GB6170, GB6172 opposite sides are 13 mm smaller than GB52 to edge 14 mm to 1 mm, M10 nut, DIN934 and GB52 to edge of 17 mm, is bigger than GB6170 and GB6172 on edge 1 mm, M12 nuts, DIN934, GB52 on the edge of 19 mm than GB6170 and GB6172 to 18 mm to 1 mm. For M14 nut DIN934, GB52 on the edge of 22 mm than GB6170 and GB6172 to 21 mm to 1 mm. The other is the M22 nut DIN934, GB52 to edge is 32 mm, than GB6170, smaller GB6172 to edge 34 mm 2 mm. The rest of the specifications without considering the thickness of the case, can be universal.