Abstract: Robot-friendly connectors, which, in one aspect are truss joints with two parts, a receptacle and a joint, the joint having a head which is loosely inserted into the receptacle and is then tightened and aligned; in one aspect, the head is a rounded hammerhead which initially is enclosed in the receptacle with a sloppy fit provided by the shape, size and configuration of surfaces on the head and on the receptacle.

Abstract: A quick-connect fastener of a relatively-simple straightforward design is arranged with a tubular body adapted to be engaged against an attachment fitting in coincidental alignment with an opening in that fitting. A tubular collet having flexible fingers projecting from its forward end is arranged in the fastener body to be shifted forwardly by an elongated expander member coaxially arranged within the tubular collet for advancing the collet fingers into the opening in the attachment fitting. Biasing means are arranged between the elongated expander member and a rotatable actuator which is threadedly mounted within the tubular collet so as to be rotated for urging the expander member into engagement with the collet fingers.