Compton Garage Avon Clip Only (Qty. 50) SAVE £18.75 when you buy fifty.

Compton used a unique threaded clip clipped to the underside of their roof truss. The clip measures just under 5cm at the base; it raised almost 2cm at one end and 1cm at the other. Tip-to-tip again measures nearly 5cm.  

On the Pent, we refer to the "Oakley" clip.