KZM
 |  KZMT
 |  KZMV
 |  DCN
  |  ZMVT
 |  KAN
 |  KSN
 |  KSNT
 |  KSNA
 |  KZMF
 |  AN
 |  DN
 
- Material : S45C
- Hardness : HRC 22 - 28
- Surface treatment : Black phosphated coating
- Screw preciseness : ISO4H degree
- Screw angularity : ┴0.002 ~ 0.007mm