SHOULDER SCREW, Cypriot screws,Contour screws

This is a special screw (in foreign countries is also a standard):
SHOULDER SCREW, Cypriot screws,Contour screws,
The axial surface precision requirements are often relatively high, the axial surface diameter tolerance is generally 0.01MM, the surface roughness is 0.8üm.
Material: SUS303
Process: Automatic Turning Forming - Punching Hex Holes - Rolling.
Features: High surface accuracy / fills the gap of domestic stainless steel contour screws.