The invention includes a mount with a knob including a shaft extending therefrom. A two piece socket housing defines a socket therebetween. The two piece socket has a portion formed as a first clamp element. A ball member is disposed in the socket and includes a slot and an attachment structure. A second clamp element has a connector, preferably an internally threaded nut captured therein. The shaft passes through a first portion of the two piece socket, the slot of the ball member, a second portion the two piece socket and terminates in the second clamp element, such that when the knob is manipulated, the two piece socket fixes the ball member in position and a clamping force is generated between the first clamp element and the second clamp element.