Adjustable Knuckle (0-120 degrees) for 34mm Galv Pipe Turned Leg The 150 Internal Expanding Joint

The 150 Internal Expanding Joint is a straight fitting for joining together tubes of the same size

The photo shows that the un-machined part of the post has a grey coloured primer/undercoat already on it

this fitting is often used where middle rails on staircases meet intermediate uprights

although the fitting may be modified to accommodate this

balustrades or other structures

Adjustable Knuckle (0-120 degrees) for 34mm Galv Pipe Turned Leg The 150 Internal Expanding JointWhere would you normally use this galvanised pipe fitting? The 166 Adjustable Knuckle is a versatile fitting, often used where a horizontal rail is joined to a sloping section. Once the desired angle is obtained, the knuckle is secured with a standard setscrew. What size pipe does it fit to? This fitting will work with galvanised pipe (tube) of an outside diameter of approximately 34mm. What is it made out of? All of the pipe fittings are made from