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Full mortise institutional hinges (prefix HTB or ICHTB) are designed especially for maximum security installations including hospitals, high security schools, institutions, and prisons. Institutional hinges are available in either steel, stainless steel, or cast stainless steel and are supplied with (1/2 x 12-24) Torx pin head (suffix TXS)* security machine screws. The one piece nonremovable pin is held intact by the insertion of two sets of dowels held in double shear into an internally constructed shelf. Knuckles with tapered hospital tips prevent tampering and removal of pins.
To further enhance its security, this hinge is available with an optional prison safety feature (suffix PSF). Single studs projecting from the back of each leaf fit into the hinge reinforcement on jamb and door to prevent shearing of screws. Consult the factory for additional information regarding our security hinge line which includes additional sizes and electrification of hinge (magnetic monitoring not available with PSF security stud). Additional finishes
are available in steel. Ball bearings are supplied as a standard on institutional hinges.
NOTE: PSF = prison safety feature
* Cast stainless hinge is drilled, countersunk and provided with 1/4-20 Torx pin head security machine screws
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