A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.
A central cohesive source of stability and security; a person or thing that is critical to a system or organisation.
To adopt as, or serve as, a central cohesive source of stability and security.
A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end.
Any fixed point or certain basis.
To command the attention of.
To attach or fasten parts by using rivets.
To make firm or immovable.
To install rivets.