8級130
A2-7023
8.8級(HRC22~34)27
5級20
A4-703
10.9級(HRC32~39)5
9.8級(HRC28~37)3
4.8級52
12.9級(HRC39~44)3
A4-805
6.8級2
A2-507
10級34
專用級2
加硬22
4級29
6級8
12級2
六角674
![[日標] JIS B 1181-1993 1型A級六角螺母](https://imgcc.164580.com/upload/48/product/2018/11/15/1542263154528142918.jpg)
![[德標] DIN 970-1982 六角螺母 六角螺母](https://imgcc.164580.com/upload/48/product/2018/11/15/1542263520076375814.jpg)
![[日標] JIS B 1220-2010 地腳用六角螺母](https://imgcc.164580.com/upload/48/product/2018/11/15/1542272050096722769.jpg)
