3M™ Dual Lock™ SJ3551 is a high-strength reclosable fastening system featuring interlocking mushroom-shaped stems that snap together to create a secure, hidden attachment solution.
Designed with a high stem density, SJ3551 delivers maximum holding strength when mated, making it ideal for demanding applications where strong, reliable fastening is required.
It utilizes a high-performance acrylic (VHB-type) adhesive engineered for bonding to medium and high surface energy substrates such as metals, glass, and many plastics, providing long-term durability in both indoor and outdoor environments.