This gearbox is available with a 35mm backset or 45mm backset, features a latch and deadbolt and is unsprung. 45mm versions use a 35mm case with an extended latch and deadbolt with a 10mm packer piece...
Winlock multipoint door lock gearboxes are very distinctive, with a square design and no corner cut-outs. The overall length of the gearbox is 221mm and the width is the backset plus 18mm.
Available i...