What is the difference between GB/T 6170 hex nuts and GB/T 6175 hex nuts?


GB/T 6170 hex nut abbreviation: GB6170 hex nut;GB/T 6175 hex nut hereinafter referred to as GB6175 hex nut. First of all, let’s take a look at the full name of the standard: GB/T 6170-2000 type 1 hex nuts (repl ced by GB/T 6170-2015) GB/T 6175-2000 type 2 hex nuts (replaced by GB/T 6175-2016)   Here is a brief introduction to the two standards: Hexagon nuts, style 2: Introduction of the standard This standard specifies the type dimensions, technical conditions and marking of type 2 hexagon nuts. This standard is applicable to type 2 hexagon nuts with thread sizes M5 to M36, [...]