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MORTISE DOOR LOCKS AND CYLINDERS

Satin brass version - Square corners

Viro's mortise door locks are compatible with most cylinders on the market and are the most widely used for the wide range of backsets available: from 20 to 70 mm.

  • Case:

    painted steel completely closed case. DIN standard through holes for insertion of security escutcheons.

  • Standard latch and dead-bolt:

    solid brass both in the brass and the steel versions (except the dead-bolt for the 20/25/30 backsets). Latch reversible with a simple movement.

    • brass version: with standard latch (for maximum security);
    • steel version: with standard or double-edged latch (the double-edged latch centers itself according to the striking plate, making the lock easier to install).
  • Mechanism:
    • 85 mm centre distance;
    • 8 mm handle hole.
    • double throw for 35 to 70 mm backsets;
    • single throw for 20 to 35 mm backsets (35 mm backset with both single and double throws for steel versions with square corners).
  • Plate and striking:

    steel (7435 series) or brass (7431 series). Removable and replaceable plate. Striking plates with square corners and jamb protection fin.

  • Supplied with:

    fixing screws for the lock and fixing screw for the cylinder.

  • Packaging:

    single box.

  •  Special visual packs.

  • N.B. supplied with plastic escutcheons

Standard latch
Item

BacksetCase width

Dimensions Dead-bolt

Throw projectiondouble throwUnit weight (without cylinder)

No.

mm

E

mm

A

mm

B x D

mm

C

No.

g

  7431.25.2.000254040 x 8,5141510
  7431.30.2.000304540 x 8,5141540
  7431.35.2.000356147 x 10202660
  7431.40.2.000406647 x 10202690
  7431.45.2.000457147 x 10202720
  7431.50.2.000507647 x 10202750
  7431.60.2.000608647 x 10202810
  7431.70.2.000709647 x 10202865

FINISHES ON REQUEST PLATE AND STRIKING PLATE IN:SATIN NICKEL PLATED BRASS (replace the last figures of the code with .009)

20 to 35 mm backsets - single throw, ideal also for metal door frames
               


Standard latch
35 to 70 mm backsets - double throw
               


Standard latch (for maximum locking hol sealing closure)

Double-edged latch (for easier mounting)

DIN standard through holesfor security escutcheons.