place of origin
Jiangsu, China
model number
M3 M5 M6 M8 M10 M12 M16 M20 M40
Name
Stainless steel DIN931 partial half thread Hex bolt nut washer
Standard
ASME B 18.2.1 DIN931 Din933 ISO4014 DIN6914 A307 A325 A449 A490 A193
Grade
GR4.8 5.8 6.8 8.8 10.9 12.9;SAE J429 Gr2 5 8;a2 a4 A193 B7/B8/B8M
Material
Carbon steel,alloy steel, Stainless steel 304/316, B7, brass,aluminum
Surface
Black,chrome/nickle/Zinc plated,hot dip galvanized , xylan