3M™ Dual Lock™ Reclosable Fastener SJ3550CF
Heavy-duty snap-in fastening with audible click, long life, and residue-free performance
What is 3M™ Dual Lock™ Reclosable Fastener SJ3550CF?
This high-performance fastener features black mushroom-shaped stems spaced at ~250 stems per square inch (39 stems/cm²), adhered to a clear acrylic tape.
It delivers a secure snap-fit, lasting up to 1,000 open-close cycles, and maintains strong adhesion to materials like metals, glass, and plastics including polycarbonate and ABS. A clean, hidden fastening alternative to screws and bolts—suitable for both interior and exterior use.
Technical Information
3M™ Dual Lock™ Reclosable Fastener SJ3550CF Technical Details & Options
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Black
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White Acrylic
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40 Stems/cm²
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3.51mm
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5.74mm
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93°C
Benefits
Why Choose 3M™ Dual Lock™ Reclosable Fastener SJ3550CF?
3M solutions are engineered to deliver more than just adhesion, they improve processes, enhance durability, and open up new design possibilities. Each product comes with unique advantages that help manufacturers achieve stronger, cleaner, and more efficient results.
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Superior Strength Performance
Delivers up to 5× the tensile strength of standard hook-and-loop fasteners.
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Long-Lasting Reusability
Maintains functionality through 1,000 engagement cycles.
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Flexible Mating Compatibility
Pairs with stem densities of Type 170, 250, or 400 for tailored strength combinations.
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Easy, No-Tool Application
Peel, press into place, and listen for the audible snap.
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Built for Harsh Environments
Resistant to chemicals, UV exposure, and high temperatures up to 104 °C (220 °F).
Request a Sample
Request a product sample to test performance in real-world conditions.
Our samples are a great way to evaluate suitability before scaling production and we’re here to support you every step of the way.
Suggested Applications
Where to Apply 3M™ Dual Lock™ Reclosable Fastener SJ3550CF?
Designed with versatility in mind, 3M products are used across a wide range of industries and environments. Here are some of the most common applications where these solutions add real value.
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Automotive & EV Interior Panels
Ideal for interior access points requiring secure, repeatable fastening.
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Electronics & Medical Device Enclosures
Supports clean, reliable attachment for sensitive or precision components.
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Modular Displays & Specialty Mounting
Well-suited for signage, exhibit systems, and specialty vehicle fixtures.
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Industrial Detachable Fastening Solutions
Provides easy, secure, and serviceable connections for industrial assemblies.
Common Industry Uses
Where is 3M™ Dual Lock™ Reclosable Fastener SJ3550CF Used?
From sealing vehicle components to assembling electronics and creating durable retail displays, 3M products supplied by RGH are engineered to perform where it counts. Here are some of the industries putting them to work.
Product Guides
Need More Technical Detail for 3M™ Dual Lock™ Reclosable Fastener SJ3550CF?
Download the latest Product Guides to explore full specifications, application recommendations, and handling guidelines to maximise the performance of 3M™ Dual Lock™ Reclosable Fastener SJ3550CF.
Need a Fastener That Snaps, Stays, and Repeats?
Whether you’re building serviceable panels, modular components, or precision mounts, our team can support you with samples, expert guidance, and fast delivery.