Free tracked delivery Message me if you are interested in a bulk order, and I’ll make a custom listing. The Briton 9160 Mechanical push button code lock. The Briton digital lock c/w hold back function operates using a single pin, hold open facility provided by snib on internal turn knob unit. Spindle can be cut down on site to suit doors from 35mm-60mm thick silver finish Item dimensions L x W x H 10.4 x 17.8 x 5.4 centimetres Mechanical push button code lock Suitable for light duty and internal use only