Table of Contents
What is the standard size mortise lock?
There are two sizes of mortice locks: 21/2” and 3”. If you are installing a mortice lock to a door with a narrow frame, or any door for that matter, it’s very important to know what size lock you need.
How do you measure a door knob for a spindle?
You will need to measure both sides of the lock. At this point it may get a little tricky. The center of a swivel spindle, the part that ends up in the lock hubs, may be fatter then the spindle ends. You need to establish the spindle size that goes into the knob or lever and also if the center is bigger.
What is a standard door spindle size?
8mm
Door Handle Spindle Sizes. The modern industry standard cross-section thickness size of a door handle spindle is 8mm (5/16″) square. This size has become the standard size for modern spindles. It should be noted however; spindles and followers were not always standardized to 8mm.
What is spindle size?
The modern industry standard cross-section thickness size of a door handle spindle is 8mm (5/16″) square. This size has become the standard size for modern spindles. It should be noted however; spindles and followers were not always standardized to 8mm.
What is a 20 TPI spindle?
Description. This sturdy spindle is designed to facilitate new or vintage doorknobs with threaded shanks of 20 TPI. Constructed of hardened steel, it provides smooth operation and long-lasting wear. With a 4″ length, it’s ideal for standard doors.
What is a spindle in a door lock?
A spindle is typically a rod of metal usually square in shape that connects the internal and external door handle together by passing through the centre of the lockcase, which in turn operates the door lock.
How do you measure a mortise lock?
Backset is measured from the centre of the keyhole to the edge of the lock. Most backsets are commonly measured at either 44mm (for a 64mm (2½”) lock) and 56mm (for a 76mm (3”) lock). Typically a lock adjacent to a glass panel will be 2½” (44mm) and otherwise 3” (56mm), but you should always measure to be sure.
What are the different types of spindles in locks?
There are three basic styles of spindles: A. Straight spindles—primarily used for passage, non locking entries. B. Swivel spindles—primarily used on mortise locks, provides a means of attaching two knobs or levers to the lock. C. Sectional spindle—provides a means of attaching a knob or lever to one side of a door. 2.
Why do some mortise locks have two sizes of hubs?
This was the birth of the swivel spindle. Some mortise lock makers used two different sized hubs for the knob spindle. This prevented the spindle from being pushed through; it made the spindle installation self-centering. Typically one hub was 9/32” square and one was 5/16” square. But not always!
What are the spindles of a door knob?
B. Swivel spindles—primarily used on mortise locks, provides a means of attaching two knobs or levers to the lock. C. Sectional spindle—provides a means of attaching a knob or lever to one side of a door. 2. The size of the square rod, measured across the flats
What is the purpose of a swivel spindle on a lock?
B. Swivel spindles—primarily used on mortise locks, provides a means of attaching two knobs or levers to the lock. C. Sectional spindle—provides a means of attaching a knob or lever to one side of a door.