Get or make two studs, specs are 8-1.25mm, 50 to 60 mm long, full thread. You can buy 50 mm long full thread bolts and hack off their heads. Screw the studs in, washer, nut, washer, crash bar, washer, nylock nut last. Loosen the top tank mounting bolt to make it much easier to line up. Put grease on all the threads, no loctite.