- Precision ground hotwork steel
- Surface nitrided to 65 - 74 Rc
- Core hardness of 40 - 45 Rc
- Head Annealed on 6" and Longer Pins
- All pins of diameter 3/32" and greater are etched for easy identification
PCS Nitrided Ejector Pins are manufactured from precision ground hotwork steel. The surface hardness of each pin is nitrided to 65 - 74 Rc with a core hardness of 40 - 45 Rc.