ProFix 3 in Steel Butt Door Hinges, 6 Pieces

What it is for

A door hinge is bought by length and thickness first, because the recess in the door edge is already cut: a 4-inch hinge will not drop into a 3-inch mortice, and a thin hinge in a deep mortice leaves the door hanging on the screws. Everything else — finish, ball bearings, fire rating — comes after the size.

Ball-bearing hinges are for heavy doors that are opened constantly, where the load should go into the bearing rather than the pin. Fire-rated hinges are thicker and matched to intumescent pads; on a fire door the pair has to be replaced as a set, not individually.

Specification detail

6 hinges, 3 in, Steel Butt, in carbon steel with a zinc plated finish, with matching screws. The knuckle is machined rather than rolled, so the pin stays tight after the door has been swung a few thousand times.

• 3 in by the standard thickness, so it drops into the existing mortice
• Machined knuckle keeps the pin tight rather than developing play
• carbon steel with a zinc plated finish, including the countersunk screw heads
• Supplied by the set: three hinges per standard door, six for a wide one

Shipping and duty

Dispatched from our Shanghai warehouse on a DDP (delivered duty paid) lane, so import duty, clearance and door delivery are already covered — the price you see is the price you pay. Sea freight runs 45–60 days door to door; air freight 7–14 days where the item qualifies. Tracking is issued at dispatch.