Back to Astra Mortice Locks


Clearance pricing valid whilst stock lasts, there will be no backorders.


Item description
Item description

Astra B-Series brass body key-snibbing vestibule mortice lock.


Features an auxiliary mini-bolt to automatically deadlatch the main latchbolt.

  • Backset: 60 mm
  • Bolt projection: 14 mm
  • Non handed except when double cylinder functions are used
  • No cylinder
  • No escutcheons
  • No turnsnibs
  • Key snibbing allows both cylinder and turnsnib to preform the same funciton
  • Cylinder and turnsnib lock and unlock external lever
  • Inside and outside lever retracts the bolt
  • Inside lever always free

Supplied body only in satin chrome.

What do the Astra lock product codes mean?

If the product code is 230-000 the first block depicts the series number. The second block shows the products features. In the case of 000 it means that the product has no cylinders, no escutcheons and no turnsnibs. Use the table below to determine the Astra products features.

The first number (of the second block) is how many cylinders.

0 = no cylinders
1 = one cylinder
2 = two cylinder

The second number (of the second block) is how many escutcheons.

0 = no escutcheons
1 = one escutcheon
2 = two escutcheons

The third number (of the second block) is how many turnsnibs.

0 = no turnsnib
1 = one turnsnib
2 = two turnsnibs

Astra handing definition - Which side of the door is the outside?

Hinged doors

Direction of opening is always viewed from the outside. The closing face of a door is the one closing against the stop bead.

  1. The outside of an exterier door is the street or entrance side
  2. The outside of a room door is a corridor or hall side
  3. The outside of a cupboard door is the room, corridor or hall side
  4. The outside of a single communicating door is the side from which knuckles or the butts are invisible when the door is closed
  5. The outside of a twin communicating doors is the space between the two doors

Sliding doors

A right hand sliding door is the one which closes to the right and has the lock on the right hand edge, viewed always from the outside.

Astra 432 Series - Lock components

AST 432-42
Snib follower

AST 430-05
Locking bar

AST 730-07

AST 430-10
Outside follower

AST 430-53
Brass washer

AST 430-09
Inside follower

AST 430-12
Spring guide & washer

Latch bolt spring & lever follower spring
Lock contains 2 of these springs

Corner spring