Abstract: A fastener is configured for use in a high vibration application. The fastener includes a nut including a nut body including a cam surface comprising wedge locking action fastening features and a hex shape upon an outer surface of the nut body. The nut further includes a locking washer including matching wedge locking action fastening features to the wedge locking action fastening features of the cam surface and a matching hex shape upon an outer surface of the washer to the hex shape upon the outer surface of the nut body. The nut is configured to include a threaded inner surface selected according to a bolt to be fastened and a nut wall thickness selected according to a load to be applied to the nut.

Abstract: A gravimetric measuring instrument that contains a weighing cell having a load-transmitting member. A load receiver can be coupled to the load-transmitting member through a releasable connection. A mechanical stop resides on the load-transmitting member, and a mechanical counter stop resides on the load receiver. By means of an eccentric bolt engaging the load receiver and the load-transmitting member, the mechanical stop can be pressed against the mechanical counter stop, whereby the stop can be clamped tight against the counter stop. With this arrangement, the load receiver can be rigidly but releasably secured to the load-transmitting member.