What are anti-jemmy hinges?

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They are hinges, or hinge bolts added next to them, that keep the door locked into the frame on the hinge side. That way the door cannot be lifted out or forced on that side, even if the hinge pins are cut or knocked out.

Many people reinforce the lock and forget the other side. But a door has two sides, and if the hinges are weak or exposed on the outside, it can be attacked there.

It happens above all on doors that open outwards, where the pins can be seen from the street, and on patio, storeroom or warehouse doors, which usually have basic hinges.

With anti-jemmy hinge bolts, the door is held to the frame on both sides when it is shut. It is all in anti-jemmy hinges.

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Anti-jemmy hinges

Security hinges and anti-jemmy hinge bolts so the door cannot be removed on the hinge side, either by levering it or by cutting the hinge pins.

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Other questions on this topic

Is an escutcheon any use if the cylinder is poor?

It helps, but it does not solve everything. The escutcheon stops the cylinder being snapped or pulled out; against bumping or picking you need a security cylinder. Read the full answer

Can a standard door be reinforced without replacing it?

Yes. With a security cylinder, an escutcheon, an extra deadbolt, anti-jemmy hinges and a good strike plate, a standard door becomes much more secure. Read the full answer

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Escutcheons and reinforcement

What people ask most about reinforcing a door without replacing it: escutcheons, anti-jemmy hinges, security surveys and the weak points of homes on the coast.

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