Blanks for T-nuts
Tempered steel 0.35-0.45 % C, unhardened, bare.
Heat treatment for achieving grade 10 according to 22-32 HRC. Harden: 880°C for 45 minutes, quench in oil at 75°C. Temper: 550°C for 2 hours. This blank can be used to economically produce "Nuts for T-slots" with customised thread.