Dormakaba Spindle Insert Extended By 7.5 mm
45200403

Features:

• Provide greater floor clearance if required (e.g. doors with thresholds, carpeted floors etc)
• Extended spindle to suit the Dormakaba BTS concealed floor spring
• Ideal for carpeted floors or doors with thresholds

Calculating the necessary length of spindle extension

Extension = X – Floor clearance (normally 8 mm)

Collar height Z of the extended spindle inserts = Spindle extension length + 3 mm

(collar height of the standard spindle insert)