Through hole load cell is also known as donut load cell which is suitable for measurement applications where the load structure needs to pass through the sensor. Washer type load cell FDBG offers 10kN / 20kN / 30kN / 50kN / 100kN / 200kN six rated capacities with customizable center thru hole diameter from 7mm to 32mm specified by clients which makes model FDBG a very flexible option for clamping/tightening force measurement.