Mortise lock with wedge latch for cylinder for doors with strong sealings Stainless steel | GSV-No. 9105 Z
2. February 2019
Mortise WC-lock backset 65mm Steel | GSV-No. 3262 WC
2. February 2019
Center lock for 3-Point locks Stainless steel 316L backset 55 / 65mm latch protrusion 14 / 16mm | GSV-No. M316 ZM
SKU: M316 ZM
Standard product
The center lock GSV-No. M316 ZM is a high-quality locking solution specifically designed for three-point lock systems, providing reliable security and long-term durability. Constructed entirely from stainless steel 316L (1.4404), the lock is exceptionally resistant to corrosion, wear, and environmental influences, making it ideal for both indoor and outdoor applications, as well as in high-humidity or marine environments.
This center lock is designed for use without a cylinder and without a strike plate, allowing flexible integration into various door systems while maintaining a clean and functional installation. The lock features a backset of either 55 mm or 65 mm, making it compatible with standard door configurations. The latch protrusion is available in 14 mm or 16 mm, ensuring precise engagement with the door frame for secure closure.
The faceplate, latch, and deadbolt are all made from stainless steel 316L, guaranteeing mechanical strength, smooth operation, and long-lasting reliability. The robust construction ensures that the lock can withstand frequent use without deformation or loss of function, providing consistent security over time.
Installation is straightforward, and the precision-engineered components allow for seamless integration into three-point locking systems. The GSV-No. M316 ZM center lock offers a technically advanced, corrosion-resistant, and mechanically robust solution for secure locking of doors requiring multi-point security, combining high performance with durable stainless steel construction for long-term reliability.
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), B-door, C-door, 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 |  |
