Star grips stainless steel, similar to DIN 6336
Material:
Stainless steel 1.4308.
Grub screw stainless steel 1.4305.
Pin stainless steel 1.4310.
Version:
Ground and polished or blasted.
Grub screw and pin bright.
Drawing reference:
Form B: drilled through
Form C: blind hole
Form D: tapped and counterbored
Form E: tapped blind hole
Form L: external thread