ZZC
GB6172 hexagonal thin nut, like DIN439 hexagonal thin nut, belong to the same thin nuts, but DIN439 is the German standard, and GB6172 is the national standard.
The thickness of the nut is divided based on the nominal diameter of the nut. For ordinary M threaded nuts, the dividing point of the thickness is 0.5D and 0.8D (D is the nominal diameter of the nut).GB6172 hexagonal thin nut thickness: 0.5D thickness <0.8D, a very limited nut bearing capacity of the structure, mainly used for connecting auxiliary or non-essential structures bearing shear load.
GB6172 hexagon thin nut is the national standard GB6172.1-2000, the thread specifications are M1.6~M64,14H, performance grades 04,05, A2-035, A2-025, A4-035, A4-025, CU2, CU3 and AL4, and product grades of A and B hexagonal thin nuts.Grade A for D M16mm and Grade B for nuts of> M16mm.
