3M™ Dual Lock™ Reclosable Fastener Twin Pack SJ3540

The unique, interlocking mushroom-shaped heads of 3M™ Dual Lock™ Reclosable Fastener SJ3540 snap shut and stay locked. They close with an audible snap to assure your design is securely fastened. Pressure-sensitive adhesive backing provides strong and durable bonds to plastics (polypropylene, polyethylene, acrylic, polycarbonate, ABS), powder coated paints and metals. 

  • Black, interlocking mushroom-shaped heads (250 stem density per 6.5 cm²)
  • Adhesive Type: Rubber
  • Engaged Thickness [mm]: 6.8 ± 15%
  • Snap-in-place installation replaces screws, nails, snaps and rivets
  • Five times the tensile strength of typical hook-and-loop fasteners
  • Durable — up to 1,000 openings and closings before losing 50 % of original tensile strength
  • Pressure-sensitive adhesive provides excellent initial tack to most surfaces
  • Features good heat resistance up to temperatures of 49 °C
  • Best suited for indoor use

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