型号
DIN933 DIN931 DIN6914 A325
Item
DIN933 DIN931 carbon steel HDG hex head hollow bolt 51
Standard
DIN933 DIN931 DIN6914 A325
Material
stainless steel304,316,carbon steel35#, 45#, alloy steel, brass..
Grade
4.6, 4.8, 8.8, 10.9, 12.9, AISI 2, AISI 5, AISI 8, AISI 10.
Surface treatment
PTFE, Black, Zinc Cr+3, Yellow Zinc Cr+6,H.D.G., Dacromet, etc.