Caravan Rear Brake Light Fixing Screw Kit
Rubber Grommet / Wellnut / Cavity Insert
Will fit most Caravans/ Motorhomes 

M4 Rubber Size
Length = 24mm (Rubber with threaded brass insert) 
Width = 8mm (Will fit a hole between 8mm & 9mm)
 Flange diameter = 11mm (This is the lip at the top of the rubber)

M4 Screw Size Only(Choice)
Screw Length = 35mm Short (comes complete with washer)
Screw Length = 45mm Long(comes complete with washer)

M5 Rubber Size(Screws not available)
Length = 25mm (Rubber with threaded brass insert) 
Width = 10mm (Will fit a hole between 10mm & 11mm)
 Flange diameter = 14mm (This is the lip at the top of the rubber)

PLEASE DROP DOWN LIST FOR OPTIONS & PRICES
(Most on Ebay dont supply the screws & washers)

These are really easy to use. 
Just place rubber fixing in hole.
Fit light and insert the screw, tighten so light is secure, but, do not over tighten. 
(Please see demonstration photo, which shows what happens when the screw is tightened). 
Sent in a secure jiffy envelope!!!
FREE POSTAGE!!!

Please ensure you check the hole size in your caravan/motorhome/vehicle before ordering...