Most of the role or purpose: used in pipe connections or the need to increase the contact surface of the nut on the workpiece

Material: 35K high-speed steel A3 low carbon steel wire 45 # steel 40Cr 35CrMoA

Hardness rating: 4 5 6 8 10 12

Surface Treatment: color zinc plating is generally divided into two kinds of white zinc plating, and generally cold electric galvanized!

Main Specifications: M5 M6 M8 M10 M12 M16 M20 the specifications (M20 and M14 M18 flange nut is not commonly used)

Thread size: Refer to GB nut thread

GB Code: GB6177-2000

 

Flange nuts and the hex nut size and thread size is basically the same, only the hex nuts, washers, and nuts are one-tooth pattern in the following non-slip, so that increases the nut and the workpiecethe surface area of ​​contact, compared to an ordinary nut and washer combination, firmer and more tension.

A common flange nuts specifications broadly in M20, because most of the flange nuts are used in pipes and flanges, therefore the workpiece constraints, the flange nut specifications and nut is relatively small compared to some. Most of the M20 flange nuts is a flange, the flange surface of tooth pattern, these nuts are used in some special equipment and special place, the general sales manufacturers not in stock.