Change in plans. Another new build begins

stud nut end has fine threads- do not compare with coarse thread bolts going into cast iron
you do NOT want grade 8 for a water pump they do not stretch enough when theaded into cast iron at cast iron torque limits
therefore they can loose clamp if gasket compresses
you do not want to overtighten -overtorque these bolts - or valve body bolts or carb bolts etc etc