Simmonds Marshall Limited manufactures Hose Fitting Nuts. Simmonds Marshall Limited is an ISO 9001:2008 certified company. The company also manufactures various types of self locking nuts and speciality fasteners and components. The Hose Fitting Nuts finds an application in rigid metal and flexible hose pipes used in fuel and hydraulic lines. The Hose Fitting Nuts have internal critical dimensions maintained to ensure reliable and leak proof joints. These Nuts are available in bright zinc, zinc blue, zinc yellow, zinc black. Hexavalent or trivalent chrome finish.