The modern industry standard cross section thickness size of a door handle spindle is 8mm 5 16 square.
Standard door handle spindle size.
In most cases the door set which is inside of the door and controls the door latch.
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Door handle spindle sizes.
Measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.
This size has become the standard size for modern spindles.
However most british spindles are still 7 6mm 19 64 square.
With the introduction of the european common market 8mm 5 16 square has become the standard for spindles.
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The overall dimension is 2 1 2.
When the levers of your door handles are pressed the spindle rotates and operates the latch inside the door allowing the door to open.
Turning the knob or pushing down on a lever handle will rotate the spindle which in turn makes the latch move back and forth allowing the door to open.
This retracts the latchbolt also known as latch tongue which allows the door to open.
The standard thickness of a spindle is 7 6mm most uk latch manufacturers produce latch openings at 8mm to accommodate this.
Is there a standard spindle size.
Spindle 8mm x 4 15 16 split 125mm length 2 1 2 door split spindle for 2 5 inch thick doors.
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4 standard threaded door knob spindle.
We have a great selection of sizes and repair shims where spindle thickness need to be increased from 7 to 8mm.
In photo 24 the door is 1 3 4 plus about of trim.
Spindles for door handles whether interior door handles or exterior upvc door handles.