material
low carbon steel, alloy steel,SS
Name
AMSE B18.3 ASTM A574 black hex socket cap screw
Standard:
ANSI/ ASTM, DIN912
Material
Carbon Steel,Brass, Stainless steel,Spring steel
Grade
CL4.8, 5.8, 6.8, 8.8, 10.9, 12.9
Finish
Black,Zinc Plated ,HOT GALVANIZED,Cr Cu or Ni Plated