Pacific Fasteners on 1st just east of Boundary.
https://goo.gl/maps/wrTFnvJuhbYQhDJF7I’ve shortened a few bolts over the years and I now have a better method than just clamping the bolt in a vice. First I clamped a cutoff from a 2x8 in my vice so it’s vertical. Next I drill a hole in the wood. On my bolt I wind on a nut , put it through the hole, then wind on a second nut that clamps the bolt and ends right where I want to cut the bolt with my hacksaw.