It just dawned on me that the Brusso knife hinges that I plan to install on a pair of 12″ x 18″ frame and panel doors will be fastened to the end grain of the vertical style on the top and bottom of each door. Logically, since the hinge is contained in a mortise the screws serve no purpose other than to hold the hinge in the mortise. However, when I look at the depth of the bite on the #6 brass screws that are supplied with the hinge it is hard to imagine that they will hold very well in the end grain over the long haul.
Am I being overly concerned? Any thoughts or suggestions?
Replies
go ahead and install them. The weight is straight down as opposed to other hinges. Any pivot type hinge like knife hinges do not have lateral forces on the door like butt hinges or other cabinet hinges.That's why real heavy doors like lead lined x-ray room doors are on pivot hinges.Much heavier type hinge of course but the principal is the same. The pivots for these doors go into endgrain at the top of the door with common door screws. The bottom pivot arm goes into some endgrain and a few inches of side grain as the arm is about 12" long.
mike
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