Abstract: A pin-engaging drawbar wedge and lock plate wedge are designed to mount in the drawbar of a trailer hitch or alternative trailer and accessory hitch or receiver assembly. The pin-engaging drawbar wedge includes a bolt extending into the drawbar and in one embodiment, having the bolt head secured to a wedge positioned beneath the locking pin extending transversely through the receiver and the drawbar. Alternatively, the bolt threads into a nut secured to the wedge. The wedge bevel face or surface engages the locking pin and the locking pin openings are typically elliptical or elongated in the drawbar, to facilitate rotating the bolt or nut and forcing the wedge against the locking pin, thus tightening the drawbar against the hitch receiver. In another embodiment the bolt extends through the drawbar and a slotted guide plate to a lock plate and rotating the nut forces the lock plate against the locking pin and the guide plate and tightens the drawbar against the hitch receiver.