3M™ 3870 Dual Lock hook and loop fastener, a reclosable fastening system, can be a quick and easy replacement for traditional mechanical fasteners (e.g., screws, nails, rivets, clips). Self-locking industrial hook and loop fastener, designed to withstand extremely high loads. 39 heads/cm². High bond strength, modified acrylic adhesive. Also suitable for bonding low surface energy (hard-to-bond) materials such as PE (polyethylene) and PP (polypropylene). Important information! Dual Lock self-adhesive industrial hook and loop fastener is a single-sided hook and loop fastener, as the heads cling to each other, therefore 1 meter of Dual Lock can be calculated as 50 cm of usable surface. Thickness (closed): 6.1 mm, Closing cycle: 1000, Color: black, Liner: red, Adhesive: modified acrylic adhesive, Temperature resistance: -30 °C to +90 °C, Packaging unit: 1 meter, Minimum order quantity: 1 meter