Features: 1) Size: M2*2x 4 to M24 x 100
2) Standards: DIN913, DIN914, DIN915, DIN916 ,BS,ANSI3) Grade:8.8 -12.9 4) Material: SUS304, SCM435, alloy steel ,Csrton steel.5) Surface: zinc plated ,black,Colorful galvanization.