Mortise latch lock for thin doors complete stainless steel | GSV-No. 3812 F
30. June 2022
Rod Lock for locomotive door | GSV-Nr. 9002
8. July 2022
Mortise WC-lock for thin doors complete stainless steel | GSV-No. 3812 WC
SKU: 3812 WC
Special product
The GSV-No. 3812 WC mortise WC-lock is a precision-engineered locking solution designed specifically for thin doors, combining reliable functionality with durable construction. Intended for use in bathroom and WC applications, this lock provides secure and convenient privacy operation while maintaining a compact design suitable for doors with limited thickness. The lock is supplied without a strike plate, allowing flexible installation and compatibility with a range of door hardware configurations.
Constructed entirely from high-quality stainless steel, the GSV-No. 3812 WC ensures excellent resistance to corrosion, wear, and daily mechanical stress. This robust material choice guarantees long-lasting performance and a consistent aesthetic, even in environments with high humidity or frequent use. The lock features a latch with a 12 mm protrusion, providing secure engagement with the strike area for smooth and reliable operation. Its faceplate width of 20 mm offers a precise mounting surface, while the lock case thickness of only 15 mm makes it ideal for thin door profiles without compromising strength or stability.
The lock is designed with a backset of 55 mm, ensuring proper alignment with door handles and facilitating convenient installation. Additionally, it includes horizontal holes for rosette stitching with a standard size of 38 mm, allowing seamless integration with a wide variety of handle and rosette designs. The complete stainless steel construction not only enhances mechanical durability but also ensures a polished finish that remains resistant to tarnishing and deformation. The GSV-No. 3812 WC mortise WC-lock is a technically precise, robust, and versatile solution for thin doors requiring reliable privacy locking functionality.
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
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| HS-Code | |
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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%.
The 2° incline is specified by the shipbuilding norm DIN
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)
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 |  |
