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Tough Alternatives to Mechanical Fasteners

Dual Lock 400/250/170

Dual Lock fasteners are intended to replace mechanical-type fasteners while retaining the secure fastening, adjustability and ease of use that Dual Lock fasteners offer. 400/250/170 refer to the number of stems or mushrooms per square inch. Type 400 mates to itself, providing maximum strength and engagement. We also offer Types 250 and 170 for a more semipermanent closure where Type 170 mates to Type 400 for less strength. Six different combinations are possible in the Dual Lock family to achieve the ease of release your application requires. 

  • Available in 1/2 in. - 6 in. widths.
  • Mix and match stem densities for your ideal closure strength.
  • High level durability; up to 1,000 closure cycles.
  • Helps reduce vibration.
  • Temperature, moisture, and UV resistant.      
  • Available in black.
  • Lightweight and low profile; will not interfere with the integrity of application design.

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3M Dual Lock options...








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