For a mounting of Stainless Steel-Tubular handles GN 666.7 (mounting from the back) the stud is first screwed in from the machine side with the threaded pin DIN 913-M8x25 (included) and then the handle is pushed on and secured with the grub screw DIN 914-M5. Type E of Stainless Steel-Tubular handles GN 666.7 is completely made of A2-Stainless Steel.