Product details : 3M DUAL LOCK FASTENER SJ3550CF BLACK 25 MMX45.7MX5.7MM TYPE 250
3M™ Dual Lock™ SJ3550CF removable fasteners are a convenient replacement for traditional fastening methods such as screws, nuts or bolts. They are designed to provide a durable removable fastening solution (which can be opened and closed multiple times) that adheres to a variety of substrates, including metals, glass and plastics such as acrylic, polycarbonate and ABS. This attachment gives the adhesive a black appearance.