XXI Surface Mount Concealed Hinge, Price/Each

Screws are not strong enough to grip the wood w/o breaking or pulling out. Had to use longer ones.

Worked well for my heavy trap door to my crawl space. Need to have someone on top to assure trap door is centered perfectly in the opening before screwing the hinges in place from below.

I searched high and low to figure out what kind of hinges to use for a custom table I was building for a consignment shop. They needed to lift a folding countertop up and down through the middle of the table/cabinets. These hinges ended up working very well, and are still in use a year later.

Super Qualitt. Funktioniert tadellos

I bought these hinges because I designed a hidden bookcase door that I wanted to be outside of the closet space. The bookcase is made from oak and reclaimed fence wood and weighs about 100 lbs. It has a frame underneath that has 4 wheels on it ( 1 per corner ), but the hinges still had to be sturdy enough to hold enough of the weight so that most of it would not strain the frame at the bottom. The hinges also had to be completely hidden when the bookcase door is closed, without me having to make massive changes to the doorway itself. These hinges were the perfect answer! I was able to put them inside the door frame ( after removing the original door ) and then attach them to my bookcase. The bookcase swings open easily and closes flush to the opening. They are invisible when the door is closed and move easily and smoothly! They also are far less expensive than the other bookcase door hinges that mount under and above the bookcase and require the bookcase to be installed in the doorway itself. I highly recommend these hinges for any DIY projects that require a sturdy, flexible hidden hinge.

Did the job so to fit a loft door very well.