3M Dual Lock is the strongest touch-and-close fastener we’ve encountered, offering far greater strength than standard hook and loop tape. Designed for demanding applications, it provides a secure, reliable hold while remaining easy to detach when needed.

Unlike traditional hook and loop fasteners, this innovative mushroom-tipped tape doesn’t have separate hook or loop sides. Instead, it interlocks with itself, creating a firm, snap-together connection with an audible click. Once engaged, it delivers an incredibly strong grip, yet it can still be easily separated when required.

The SJ3550 style is a high-performance tape featuring a durable acrylic-based adhesive, making it suitable for both indoor and outdoor use. Designed for versatility and strength, it securely interlocks with itself as well as with SJ3540 style tape, providing a reliable and long-lasting fastening solution.