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Grade 1 Commercial Door Knobs

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backsethelp
helpBoxBackset
The measurement from the edge of the door to the center of the bore hole.

commercial gradehelp
helpBoxCommercial Grade
Commercial grade door hardware can be used for any residential application but has been tested based on performance benchmarks: Operational, Strength, Cycle, Security, Material Evaluations, and Finish, where products receive Grade 1; the highest grade possible; Grade 2, or a Grade 3.

cross borehelp
helpBoxCross Bore
The Cross Bore is the hole in the door in which door hardware is mounted.

door handedness
knob gradehelp
helpBoxKnob Grade
This helps distinguish door hardware that can be used in either commercial or residential applications. Commercial grade door hardware can be used for any residential application but has been tested based on several performance benchmarks. Residential door hardware, on the other hand, still of high quality but is designed to withstand everyday normal wear and tear.

locking mechanismhelp
helpBoxLocking Mechanism
The locking mechanism is important to know if you are replacing a door handle or adding reinforcements to secure your door. These options will help you choose the right lock to secure either your interior, exterior, or sliding doors.

lock features
lock type
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Width: 2.375in
Height: 8in
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