Roto TSL Twinlock Window Lock Rod 20mm or 22mm Backset Mushroom Cam 400mm to ...
Roto TSL Upvc Window Lock Rod 20mm Or 22mm Backset With Mushroom Cams. 400mm = Actual lock length of 400mm. Backset: 20mm & 22mm. Length: 400mm - 1000mm. Cam Height: 8mm. Also Note the actual lock lengths are as follows.