1" x 150' Clear (1 Pack) 3M SJ4570 Dual Lock Low Profile Fasteners $285.10 1" x 150' Clear (1 Pack) 3M SJ4570 Dual Lock Low Profile FastenersLow profile fastener is half the thickness of standard dual lock fastener.Clear polypropylene, reclosable fastener with an acrylic adhesive. Self-mating. Bonds to metals, glass, plastics... Add to Cart