Most lock manufactures have their products tested by the american national standards institute ansi and builders hardware manufacturers association bhma for grading on how their locks perform.
New door handles stiff.
To rectify both handles will need to be.
When shopping for types of door locks and handles also consider the lock s grade and ease of installation.
When a slab.
Spray the stem usually located on the side that faces into a room with a spray lubricant.
I d say it s either the handle shaft hole is too small or more likely the handles have been fitted out of true not at 90 degrees to door face.
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Depending on the type of.
Most pre hung doors whether equipped with a solid or split door jamb have the mounting holes for the door hardware already drilled.
Once eased off wipe everything down and grease the mechanism before replacing to avoid any future problems.
Perfect for bedroom and bathroom doors beyond which privacy is sometimes desired.
If the hinge side binds one or both hinges may need to be shimmed out.
Remove the handle and try easing the mechanism with a spray lubricant.
Step 2 now that the door handles have been removed from the door check on the rear of the plates for any obstructions.
If the door binds along the latch side the hinges may need to be set deeper or the strike plate may need to be set deeper.
If there is binding along the top or the bottom the door needs to be planed or trimmed.
A new design feature is the 70 mm rose plate that easily covers paint rings left from previous door hardware installations.
Spray the lubricant onto the stem of the latch bolt.
Sometimes door handles can become stiff due to corrosion of the mechanism particularly on an external handle or perhaps a bathroom handle.
Step 3 if the door handles themselves appear to be in.
Step 1 it s time to take a screwdriver and remove the door handle and latch from the door.