Force washer load cell FDBA is made of stainless steel intended for press or inline compression measurement. The most common application of the donut thru-hole load cell FDBA is to be installed between the bolt head and the nut, where it measures fastener clamping force as torque is applied. Hollow force transducer FDBA offers a wide measuring ranges from 20kg to 5ton, the load cell washer can be also modified or customized to meet your requirements.