This Break Away Bar is also known as a Stylus Pin. It is the bar that the Stylus Arm connects. It is 89mm (3.56") long and uses an M8 bolt to attach the Stylus Arm.
Mazak® Part # 36602300230, 36602300550
Disclaimer
All products are fully compatible with referenced brands, but are not affiliated with, authorized, endorsed, or sponsored by any Original Equipment Manufacturer (OEM) or named brands, unless explicitly stated in the product description.