din 444
*all measurements in millimeters (mm)*
| d | d1 | d2 | b to 125 | b to 200 |
| m5 | 12 | 5 | 16 | |
| m6 | 14 | 6 | 18 | |
| m8 | 18 | 8 | 22 | 28 |
| m10 | 20 | 10 | 26 | 32 |
| m12 | 25 | 12 | 30 | 36 |
| m16 | 32 | 16 | 38 | 44 |
| m20 | 40 | 18 | 46 | 52 |
contact: lizhong.deng
phone: 13928071304
tel: 0756-8586520
email: lizhong@zhjiali.com
add: mingzhubeilu388haochangshaxinyun56-301,xiangzhou area,zhuhai city,guangdong province,china.