3M SJ3551 Dual Lock™ Reclosable Fastener, 1" x 50 yd x 0.23", Black, 2/Case, MFR ID 7000001958

3M™ Dual Lock™ Reclosable Fastener SJ3551 is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution (which can be opened and closed multiple times) which bonds to a variety of substrates including metals and plastics such as acrylics, polycarbonate and ABS. - Designed to bond to metals, glass and high surface energy plastics. A black fastener with mushroom shaped stems backed with a white, general purpose acrylic pressure sensitive adhesive. Type 400 stem density polyolefin fastener which mates to type 170 or 250.