... loading force, shearing force and torque force all reach international standard. Our products are widely used in furniture, car, ship, electron ... : flat head ,countersunk head, round body, hex body, open end, closed end, body with ribben, body with groove and so on . also ... ,5/16,3/8 . material: steel, stainless steel, brass,aluminium. non-standard part-Pipe Fittings