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Door handle spindle sizes.
The overall dimension is 2 1 2.
In photo 24 the door is 1 3 4 plus about of trim.
Retrofit a door knob using the same principles as above.
If you need a threaded spindle find out what the threads per inch are and check to see that the spindle thickness is small enough to fit through the hub of your lock or latch.
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6mm door handle spindle cut to size up to 130mm length.
Door knob spindle and dummy spindle hardware.
Door handle spindle sizes.
Spindle 8mm x 4 15 16 split 125mm length 2 1 2 door split spindle for 2 5 inch thick doors.
This retracts the latchbolt also known as latch tongue which allows the door to open.
6mm to 8mm plastic door handle spindle expansion sleeve.
6mm to 7mm plastic door handle spindle expansion sleeve.
Many older door knobs will fit newer knob spindles.
Are all spindles the same size.
Add to this size a sufficient length for spindle to attach your knob or lever.
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.
A set screw on both the retro door knob and the newer door knob can be unscrewed.