The pin is attached to the frame leaf, so you can take off doors without removing the screws or pin from the hinge. Surface-mount hinges are the standard for most enclosure doors, panels, and lids. Since they don’t need a cutout, they’re easier to install than mortise hinges but won’t sit flush with the edge of your door.

To install hinges without mounting holes, weld into place or drill your own holes.

Grease these hinges without the hassle of disassembly or the mess of lubricating from the outside. They have a grease fitting for injecting lubricant to reduce wear, prevent rust and seizing, and eliminate squeaks. The compact bullet shape takes up very little space, yet hinges are strong enough for large, heavy doors. Weld the male half of the hinge to the frame and the female half to the door—then you can quickly lift the door off without removing the pin.