China Prevailing Torque Type Hexagon Domed Cap Nuts with Non-Metcallic Insert DIN 986-2000/DIN981 Stainless Steel Bearing Locking Round Nut, Find details about China Fasteners, Hardware from Prevailing Torque Type Hexagon Domed Cap Nuts with Non-Metcallic Insert DIN 986-2000/DIN981 Stainless Steel Bearing Locking Round Nut