from Eurospec.
Bolt through tubular latch(Required) : BTL1 - 64mm - Polished Brass - £1.76 BTL2 - 64mm - Nickel Plate (silver) - £1.76 BTL3 - 76mm - Polished Brass - £1.97 BTL4 - 76mm - Nickel Plate (silver) - £1.97 (*) Mandatory Option
Bolt through tubular latch