Be sure you also have the right parts to make the connection. The only time I have seen a boom pin break is when attached incorrectly. Possibly pined directly to the yoke on the mast. There should be a small flat plate bent into a "U" that we call the hinge vertex. This acts as a universal joint. The vertex pins to the boom pin, then the bottom of the "U" on the vertex pins to the yoke on the mast.

The screw on trap handles are a Hobie product, so you can get from any Hobie dealer.