모델 번호
ISO4017 ISO4012 GB5781 Din933 hex bolt
Name
ASTM A307 As1252 Black Coating Heavy Large Hexagonal Bolts
Standard
DIN931 DIN933 DIN960 DIN961
Coating
Plain,zinc,hdg,dacromet
Grade
4.8/ 5.8 /6.8 /8.8 /10.9/12.9/SS304/SS316
Material
Stainless Steel 304