AUTO CYLINDER DRAIN COCKS - £40

This type of drain cock is a much easier alternative to the manual type, requiring no linkage (or precise lining up!), although the one semi down side is that its recommended not to fit these to a locomotive with piston valves. Here are some key points: 

• Body diameter - 5/16 / 8mm                                        

• Body  length - 5/8 / 16mm

• Material - Brass 

Currently these are made with the following thread sizes - 

• 5/32 x 40 

• 3/16 x 40

If you require a different thread, please state this when ordering.