The smooth ring handle on these pins won't catch on parts. A spring-loaded, nonlocking retaining ball pops out to hold pins in place.The ends are chamfered for easy insertion. Breaking strength is measured as single shear, which is the force required to break the pin into two pieces. Also known as faspins. pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.Choose a pin with a lanyard to keep the pin from getting lost when removed.