Mortise lockset complete for cylinder complete stainless steel 304 backset 55 / 65mm | GSV-No. 1301 GZ
2. February 2019
Mortise lock for skeleton key backset 55mm Brass | GSV-No. 3201
2. February 2019
Center lock for 3-Point Locks complete stainless steel latch protrusion 16mm | GSV-No. 2436 ZM
SKU: 2436 ZM
Standard product
The center lock with GSV-No. 2436 ZM is a precision-engineered locking component specifically designed for 3-point lock systems, offering reliable performance, durability, and high corrosion resistance. Manufactured entirely from stainless steel, the lock is highly resistant to mechanical wear, environmental influences, and corrosion, making it suitable for both interior and exterior door applications. Its robust construction ensures a long service life even under frequent and demanding use.
Equipped with a pin hub, the center lock provides secure and precise transmission of force from the operating mechanism to the internal locking components. This design guarantees smooth and consistent operation, ensuring that the door locks and unlocks reliably with each use. The latch protrusion measures 16 mm, a dimension that is carefully matched to the requirements of 3-point locking systems, ensuring proper engagement with the corresponding locking points. This feature enhances the stability and security of the door assembly while maintaining reliable functional performance over time.
The lock is supplied without a cylinder or strike plate, allowing flexibility for installation in various door configurations and enabling integration into new or existing systems. The absence of a strike plate allows for adaptation to specific door frames or custom requirements, offering modularity and ease of installation.
With its complete stainless steel construction, the center lock combines mechanical stability with a corrosion-resistant, low-maintenance surface. The GSV-No. 2436 ZM center lock represents a technically reliable, long-lasting solution for 3-point locking systems, providing enhanced security, precision operation, and compatibility with professional door assemblies.
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
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%.
- Shipbuilding standard: 14mm
- 16 mm according to DOT (Deprtment of Transportation)
- 19 mm according USCG (US Coast Guard)
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. |
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| 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. |
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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. |
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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. |
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| 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. |
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| 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. |
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| 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) |
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| Type of lock | Illustration (click to download as PDF) |
| Mortise latch locks |  |
| Mortise WC or toilet door locks |  |
| Mortise locks for EURO profile cylinder |  |
