Secret door lock 70 mm, spike

Two-way secret lock MAUER for metal and armored doors with four steel spikes according to BDS. Combines with locks according to BDS. The secret lock has a center size of 70 mm and the distance of the hole from the plate is 50 mm. A hole is provided for lubrication of the mechanism. Of course, the lock has protection against wear of the mechanism and protection against corrosion. The housing is made of hot-dip galvanized steel sheet. The tongue allows inversion, which guarantees use for the left and right doors.