3M Dual Lock Mushroom-shaped Fastener, Thin Type SJ4575

3M™ Dual Lock™ Thin Profile SJ4575 fasteners feature black mushroom-shaped heads and backing, and utilize a low-surface-energy adhesive. 

This product is only half the thickness of standard 3M™ Dual Lock™ fasteners, providing a thin and lightweight fastening solution. 

This concealed fastening system can replace screws and bolts, offering a secure fit and a smooth, aesthetically pleasing appearance.


Black and thin, the polyolefin fastener is only half the thickness of standard 3M™ Dual Lock™ mushroom fasteners and is self-mating.


The interlocking mushroom heads provide a strong, reliable, and durable bond, and can be used repeatedly.


The adhesive backing is a low-surface-energy acrylic adhesive that bonds well to a variety of substrates, including metals, powder coatings, and various plastics.


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