Hinge Bolts provide the necessary attack protection to the hinged side of a door, with hinges often sacrificial in the case of attack. Outward opening doors in particular are often vulnerable on the hinged side, as the hinges are clearly visible to a would be attacker.
The hinge bolt pin is fitted into the edge of the door, projecting out on the hinged side ready to be received into a keep in the frame as the door reaches its closed position.
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Hinge Bolts -Added Security to the Hinged Side
15mm hardened steel bolt with 25mm projection
5mm thick steel keep plate
Medium-duty hinge bolt
A good medium security hinge (dog) bolt with 5mm thick steel keep plate recessed into the frame.
Ordering code: SG
Heavy-duty hinge bolt
A heavy-duty hinge (dog) bolt, with a complimentary steel keep fitted into the frame, rear fixed through the thickest section of the frame. (UK patent number 2200677).