All gas cylinders with a threaded necking are required to have cylinder caps in place when being stored full or empty. These steel gas cylinder cap have the durability to withstand cylinder falls and keep the valve protected Cylinder valve protection is paramount when moving or storing a cylinder. Product: High Quality forged seamless steel gas cylinder cap Application: Protection of valve guard during transportation Raw material : SPHC hot-rolled steel or as per required Thread : W80-11,W3-1/8-11,W3-1/8-7,W3-1/2-11,W3-1/2-8,M120-11,W95 Logo : As your requirement Color : Grey,red,blue,green and so on