Mortise WC-lockset with anti-vibration latch complete stainless steel 304 backset 55 / 65mm | GSV-No. 1311 GWC
2. February 2019
Mortise lock for profile cylinder DIN 81301 B Brass | GSV-No. 3201 Z
2. February 2019
Center lock for 3-Point Locks complete stainless steel latch protrusion 14mm | GSV-No. 2438 ZM
SKU: 2438 ZM
Standard product
The center lock for 3-point locks, GSV-No. 2438 ZM, is a precisely engineered locking component designed to serve as the main locking unit within complete 3-point locking systems. It provides reliable and secure closure for doors, panels, and similar applications where multi-point locking is required to ensure optimal security and stability. Manufactured entirely from stainless steel (A2), this center lock offers exceptional corrosion resistance, mechanical strength, and long-term durability. Stainless steel A2 is highly resistant to rust, wear, and environmental influences, making it suitable for both indoor use and protected exterior applications where a robust and long-lasting locking solution is essential.
The lock features a latch protrusion of 14 mm, which guarantees precise engagement and secure holding within the locking system. This dimension ensures that the latch reliably engages during each operation, maintaining consistent functionality and preventing accidental disengagement. The mechanism is engineered for smooth and dependable operation, even under frequent use, ensuring the overall stability of the 3-point locking system.
The center lock is designed for cylinder operation but is supplied without the cylinder and strike plate, allowing flexible integration into existing setups or custom installations. This makes it ideal for both retrofitting older systems and implementing new lock configurations according to specific requirements.
Identified by GSV-No. 2438 ZM, the center lock can be easily referenced in technical documentation, spare part catalogs, and ordering systems. Overall, it represents a technically advanced, durable, and practical solution, specifically developed to optimize the performance and security of 3-point locking systems in demanding applications.
Current general delivery dates subject to the usual reservations::
Brass:
• The general delivery time for products in brass satin chromed is currently 6-8 weeks
• The general delivery time for products in brass polished / brass polished chromed is currently 8-10 weeks
Stainless Steel:
• The general delivery time for products in stainless steel is currently 6 weeks
• The general delivery time for products in stainless steel polished / fine grind is currently 6-8 weeks
Aluminum:
• The general delivery time for products in Aluminum silver andodized is currently 6 weeks
• The general delivery time for products in Aluminum powder coated is currently 6-8 weeks
Special/project products:
No standard delivery time, as components are only made to order. In each case by individual arrangement
| Weight | N/A |
|---|---|
| Product class | |
| HS-Code | |
| Product type | |
| Area of product installation | A-door (Fire protection), Doors industrial shipbuilding standard |
| Sales unit |
Note on express dispatch | 24 delivery service Each item with a stock quantity can be dispatched within 24 hours. The surcharge for the 24h delivery service is 5%.
Our products do not contain the following chemical hazardous substances:
Asbestos
Polychlorinated biphenyls (PCBs)
Chlorofluorocarbons (CFCs)
Halons
Carbon tetrachloride
1-1-1-Trichloroethane
Hydrochlorofluorocarbons
Hydrobromofluorocarbons
Methyl bromide
Bromochloromethane
Anti-fouling systems containing organotin compounds as a biocide
Cadmium and cadmium compounds
Hexavalent chromium and hexavalent chromium compounds
Lead and lead compounds larger 3%
Mercury and mercury compounds
Polybrominated biphenyl (PBBs)
Polybrominated dephenyl ethers (PBDEs)
Polychloronaphthalenes (Cl >= 3)
Radioactive substances
Certain shortchain chlorinated paraffins
Perfluorooctane sulfonic acid (PFOS)
Brominated Flame Retardant (HBCDD)
3-point locks always consist of 1 center lock (ZM) and 2 addtional latch locks (FOU) for top and bottom. The product is being supplied without rod.
The hand of door for mortise locks is defined as:
if the door is closed and the hinges are visible on the right/left, then the door is right/left hand. The door is therefore hinged on the right/left and according by definition of DIN right/left.
Or: if you grasp the handle with your right hand and latch and deadbolt show to the left, then it is right hand. If you grasp the handle with your left hand latch and deadbolt show to the right, it is a left hand.
Rim locks
The hand of door for rim locks is defined as:
if the door is closed and the hinges are visible on the right/left, then the door is right /left hand. The door is therefore hinged on the right/left and according to the definition DIN “right/left".
In addition to the designation “left” and “right”, it is to be indicated whether the locks are intended for inward or outward opening doors.
Sliding door mortises
The hand of door for sliding door mortises is the same for right and left. Sliding rim door locks different for left and right doors.
When ordering, always indicate “left” or “right”.
| Latch
The lock latch keeps the door shut. In order to open the door, it must be retracted. |
| Type of latch design | Illustration |
| single latch |  |
| anti-vibration or three-piece latch |  |
| rolling latch adjustable |  |
| POM-latch for strike dampening |  |
| Deadbolt
The deadbolt regulates the access rights through the turning motion of the cylinder by key. The deadbolt is being driven out or retracted through the turning motion. |
 |
| Faceplate
The faceplate is the visible part of the lock case. The faceplate, the latch and the deadbolt are the only visible parts of a mortise. |
 |
Handle hub
The handle hub takes the square spindle of the handle in order to retract the latch inside the lock through the turning motion of the same. This process allows the opening of the door. The shipbuilding norm specifies a 9mm square with a 2° incline. Schwepper supplies also with 8mm square, special contour or 0° incline on request. |
 |
WC-/privacy hub
The WC hub takes the square spindle of the olive or thumb turn, that retracts or drives out the deadbolt from the inside - analogue to the turning motion of the cylinder. The shipbuilding norm specifies a 7mm square. Schwepper supplies also with 8mm square on request. |
 |
| Dimension | Illustration | |
| Backset
The backset is the distance from the front edge of the faceplate to the center of the cylinder hole respectively handle hub square. The rear backset behind the center line remains always 27mm. |
 |
|
| Distancing
The distancing is the dimension from the center of the handel hub and the center of the hole for profile cylinder / privacy (WC) / key. The industry standard in shipbuilding is 75mm. |
 |
|
| Latch protrusion
The latch protrudes according to the industrial DIN standard in shibuilding 14mm. Other technical standards for latch protrusion are: 16 mm according to DOT (Department of Transportation) 19 mm according to USCG (US Coast Guard) |
 |
 |
| Type of lock | Illustration (click to download as PDF) |
| Mortise latch locks |  |
| Mortise WC or toilet door locks |  |
| Mortise locks for EURO profile cylinder |  |
