Sacrificial parts are great design IMO, specifically when they protect a much more expensive part. However, it does bother me that the parts are often very cus

Sacrificial parts are great design IMO, specifically when they protect a much more expensive part. However, it does bother me that the parts are often very custom and only available from the manufacturer. I enjoy listening to a conversation where some blowhard talks about was was obviously a shear pin breaking in some mechanical peice of equipment and then replaces it with a grade 8 bolt.