Pushnuts, Press Nuts, or Push-On Retainers, are round fasteners which can be pushed on to the threaded part of a bolt or screw to hold it in place during assembly. A Pushnut cannot be removed without destroying it which provides a level of security.
Pushnuts are available on the FCH Network with Imperial/US diameters that range from #1 to 3 and with Metric diameters that range from M2 to M14. The length of Pushnuts is usually measured from the point to the underside of the head.
Pushnuts are available on the FCH Network in finishes or coatings that range from Plain to Tin