Confirmat Screw
Confirmat screws or cabinet-connecting screws are screws designed to hold in particleboard, medium-density fiberboard, and similar materials. They are very common furniture screw, in furniture assembly, but are rare in retail. They may have flat or barrel heads. They have blunt tips, large shanks, and often a shoulder, a broad length of unthreaded shank just below the head, which helps hold the screw in position. They have coarse threads, rather like masonry screws (which may match them exactly in thread). Confirmat screws are usually screwed into stepped, predrilled holes, often drilled with a stepped bit. Short, shoulderless confirmat screws, whose heads pass through hardware like hinges or drawer slides, may go into unstepped holes. As they are screwed in, confirmat screws self-tapping screw, compress a thread (the spiral groove) into the particle board. They do not cut new threads if removed and re-inserted. A confirmat screw can therefore be removed and replaced dozens of ...
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