TYPE
SIZE
CLASS/MATERIAL
SURFACE
STANDARD
METRIC& INCH SIZE
M5-M36
Grade 4.8
5.8 , 6.8 ,8.8
10.9,12.9
A2, A4
PLAIN
BLACKZ.P. CR3+YZPH.D.G.
DAROMET
GEOMET
DIN931 DIN933DIN960 DIN961DIN7990DIN6914
ISO4014ISO4017AS1111 JIS1180BS916
ASME B18.2.3.1MASME B18.2.3.2MASTM A325 TYPE 1
SAE J429--GRADE 2SAE J429--GRADE 5SAE J429--GRADE 8