The Bolt,special,6x45 is the most widely applied product in the NT650 HAWK GT 1990 (L) USA CALIFORNIA WATER PUMP ( two times ).
The Bolt,flange,6x22 is the cheapest item from this partsfiche.
A sample from the products for the Water Pump include: Bolt,special,6x45, Bolt,special,6x25, Dowel,pin,8x14, Oil Seal,12x28x7.