3M™ Dual Lock™ Reclosable Fastener SJ3550

The unique, interlocking mushroom-shaped heads of 3M™ Dual Lock™ Reclosable Fastener SJ3550 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 metals (aluminium, stainless steel), glass, plastics (acrylic, polycarbonate, ABS) and paints.

  • Black, interlocking mushroom-shaped heads (250 stem density per 6.5 cm²)
  • Adhesive Type: White Acrylic
  • Engaged Thickness [mm]: 5.7 ± 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 excellent heat resistance up to temperatures of 93 °C
  • Moisture and UV resistant
  • Suitable for both indoor and outdoor use


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