Took a hammergun apart to ultrasonic clean, refinish wood, etc. Reassembling now and the sideplate connecting screw is misaligned, just barely, and enough so that screw will not grab. Threads are in fine shape. No mistakenly swapped screws. It was together before and nothing has structurally changed. There is not enough play anywhere to allow for angles to shift to get a start. Thanks for any tips and tricks.