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Hinge Terminology and Handing
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In many situations, one needs to know what types of hinge are available and the terminology used for their various parts. Below, we present the various terms used for hinges and their handedness, i.e. in what direction they open.

Lift-off hinges

1 Bolt
2 Height adjustment slot
3 Bolt leaf
4 Pin
5 Pin leaf
6 Fastening hole
7 Rolling
8 Turning allowance

Drill-in hinges

1 Cotter
2 Fork
3 Bolt (pin)
4 Beveling
5 Non-helical section
6 Pin sleeve
7 Cotter toothing

 

 

Opening direction

 

All lift-off hinges are either right-handed or left-handed.

The opening direction is determined according to which way the door is required to open

Left-handed hinge

Right-handed hinge