OBSOLETE
Vestibule locks feature deadlocking latch with inside handle always free for single action escape. The outside handle is locked or unlocked by a series of cylinders and/or turnbuttons, inside or outside.
Functions
- Primary Lock
- Office Lock
- Dual Function Office Entry Lock
- Entrance & Office Lock
- Double Cylinder Exit Lock
- Dual Function Double Cylinder Lock
- Classroom Lock
- Dual Function Classroom Lock
- Storeroom Lock
- Exit Door Lock
- Exit Latch ( Electric Strike)
Finishes
PS SS
When ordering, add the relevant finish code to form complete catalogue number. List escutcheons and turnbuttons separately.
Latchbolt
14mm Sintered Stainless Steel
Backsets Available
60mm
Cylinders (SOLD SEPERATELY)
Cylinders are oval type used in Australian mortice locks and can be interchanged with other specially keyed cylinders. Cylinders can be supplied with or without the lock. Gainsborough C4/6 pin standard profile or straight six restricted profile are available to match other Gainsborough products. Unlike other Australian type mortice locks, the Gainsborough 2000 & 3000 Series range of locking latches feature the cylinder below the handle/knob for ease of operation and convenience.
ย
Home | Locksย | Deadlocksย |ย Gainsborough






Sarah Johnson –
The Gainsborough 3400 Series Mortice Vestibule Lock is a game-changer! Itโs sturdy, reliable, and easy to install. Perfect for enhancing home security.
Michael Brown –
Great lock! Feels very solid and well-made. Installation was straightforward, and it fits perfectly on my door. Highly recommend for anyone looking for quality.
Emily Davis –
Iโm very impressed with this lock. Itโs durable, secure, and adds a touch of elegance to my door. Definitely worth the investment.
David Wilson –
Excellent product! The lock operates smoothly and provides great security. The finish is also very nice. Very satisfied with my purchase.
Jessica Martinez –
This lock is fantastic! Itโs robust, easy to use, and has a sleek design. Installation was a breeze, and it feels very secure.
Daniel Anderson –
Iโve been using this lock for a few weeks now, and itโs been great. Itโs very reliable and adds an extra layer of security to my home.
Laura Taylor –
The Gainsborough 3400 Series is a top-notch lock. Itโs well-built, secure, and looks great on my door. Very happy with my purchase.
James Thomas –
This lock is exactly what I needed. Itโs sturdy, reliable, and easy to install. I feel much safer with it on my door.
Olivia White –
Very pleased with this lock! Itโs high-quality, secure, and has a nice finish. Installation was quick and hassle-free.
William Harris –
The Gainsborough 3400 Series is a great investment. Itโs durable, secure, and adds a polished look to my door. Highly recommend.
Sophia Clark –
This lock is amazing! Itโs very sturdy, easy to use, and provides excellent security. Iโm extremely satisfied with my purchase.
Benjamin Lewis –
Iโm very happy with this lock. Itโs well-made, secure, and looks great on my door. Installation was quick and easy.
Mia Walker –
The Gainsborough 3400 Series is a fantastic lock. Itโs robust, reliable, and adds a touch of sophistication to my door. Highly recommend!