The Screw,tapping 3x16 is the most widely applied product in the CB400T HAWK 1981 (B) USA AIR CLEANER ( four times ).
Check out any of the fifty Air Cleaner components enlisted.
A sample from the products for the Air Cleaner include: Clip,tube,b12.5, Clip, Air Hose 16mm, Washer,18mm, Nut,hex.,6mm.