TYPE
SIZE
CLASS/MATERIAL
SURFACE
STANDARD
METRIC& INCH SIZE
M3-M48
CLASS 6, 8, 10,12
ASTM A563M CLASS 8S ASTM A563M CLASS 10S
A2,A4
PLAIN
BLACKZINC CR3+YZPH.D.G
DIN934DIN555DIN6915ISO4032
ASME B18.2.2
CARBON STEEL
ALLOY STEEL