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