How does the 3M Dual Lock SJ355D fastener work?

The mushroom-shaped heads interlock with an audible snap, providing a secure yet reclosable joint.

Which surfaces are suitable for this adhesive tape?

The acrylic adhesive bonds firmly to metals, glass, and plastics such as acrylic, polycarbonate, and ABS.

Is this tape suitable for outdoor applications?

Yes, it resists UV light, moisture, and temperatures from -30 °C to 70 °C, making it ideal for indoor and outdoor use.

How many opening and closing cycles does it support?

The closure can be opened and closed up to 1000 times before losing 50% of its original tensile strength.

Do you need separate hook and loop sides?

No, 3M Dual Lock is self-mating; you simply cut two pieces from the same roll to click them together.

3M SJ355D CF Dual Lock reclosable Velcro MINI black 25 mm x 5 m - 7100297488

Supplier number: 3M 7100297488 | EAN 04064035089672

169.20 tax incl.

€139.83 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

box

The minimum purchase order quantity for the product is 4.

Ordered before 20:00 - delivered as of 09/10/2026
Free shipping
Delivery by DHL

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Strong and invisible mounting with 3M Dual Lock SJ355D

Practical benefits

Exceptional tensile strength: You achieve a firm grip with interlocking mushroom heads that provide five times the strength of standard hook-and-loop fasteners.
Repeated opening and closing: You can open and reclose the fastening up to 1000 times without losing holding power.
Tool-free clean attachment: You easily mount panels to metal, glass, and rigid plastics without drilling holes or using screws.

In a nutshell

The right choise for

With 3m Dual Lock SJ355D, you create an invisible and exceptionally strong bond without the need for drilling or screws. The interlocking mushroom-shaped heads snap firmly together with an audible click, delivering up to five times the tensile strength of standard hook-and-loop fasteners. Its strong acrylic adhesive bonds reliably to metal, glass, and rigid plastics like ABS, acrylic, and polycarbonate. Resistant to uv light, moisture, and temperatures from -30 °C to 70 °C, it performs reliably indoors and outdoors. Because the fastener can be opened and closed up to 1000 times, you can mount access panels, display signs, or electronics cleanly, securely, and with easy removal.

Product information FAQ

€169.20

tax incl.

Key features according to our expert

Width: 25 mm
Length: 5 m

Product description

Black interlocking mushroom-shaped heads (40 leg density per cm²) provide a strong, reliable and durable fastening that can be opened and closed multiple times
Sizes with Type 26, Type 40 or Type 62 stem densities to offer different strength combinations
Transparent acrylic tape adheres to many substrates, including metals, glass and plastics such as acrylic, polycarbonate and ABS.
Strong closure secures with an audible click, confirming the closure
An alternative to screws and bolts, this hidden fastener ensures a snug fit and a smooth aesthetic appearance

3M Dual Lock Reclosable Click Tape SJ3550CF is the simple alternative to traditional fasteners such as screws, nuts or bolts. It is designed to provide a durable, resealable fastening solution that adheres to a variety of substrates, including metals, glass and plastics such as acrylic, polycarbonate and ABS. This snap tape gives the adhesive a black appearance.

Simplicity unlocked Durable and secure, 3M Dual Lock Reclosable Click Tape SJ3550CF has exceptional strength due to its interlocking mushroom-shaped heads (40 leg density per square cm), which offer up to 5x the tensile strength of typical Velcro products. We designed this closure with a transparent, acrylic tape protected by a removable film liner. This tough, pressure-sensitive tape has a strong, durable bond that is heat-, chemical- and UV-resistant. With 3M Dual Lock Resealable Snap Tape SJ3550CF, no drilling, screwing or sewing tools are required, ensuring fast installation. Design flexibility 3M Dual Lock Reclosable Click Tape SJ3550CF consists of interlocking mushroom-shaped heads that easily slide over each other, allowing parts to be positioned before being clicked together. This fastening process ensures a durable attachment and allows for fast product assembly with great design flexibility. Our reclosable click tape can also be used with different leg densities for different levels of strength and system performance. 3M Dual Lock Reclosable click tape makes an audible click when it engages, confirming the closure of the attachment. To disengage, simply pull the pieces apart by hand. Our click tape retains its strength throughout multiple attachments and detachments. A lightweight alternative to metal fasteners, this product remains hidden under surfaces and does not affect the integrity of your material, providing aesthetic improvements and design flexibility. Hundreds of new attachments with one click When two pieces of 3M Dual Lock Resealable click tape fit together, the legs bend and the mushroom heads slide past each other. After passing the opposite fitting piece, the legs snap back into their original position and the opposite mushroom heads interlock. These fasteners can offer high tensile strength, but can be opened by simply pushing or pulling the fastener open. This product is well suited for many indoor and outdoor applications where a strong and versatile reclosable fastening system is required. Delivers long-term performance Not all design requirements are easily met, but you can simplify your fastenings. If you need a strong, reliable but removable fastener or bond, 3M Dual Lock Reclosable Click Tape is the simple alternative to traditional fasteners such as screws, nuts or bolts.

Suggested applications

Access panels
Graphic element
Special vehicles (interior fixings)
General industrial attachments

All Features

Width: 25 mm
Length: 5 m

Brand 3M
03279325
EAN 04064035089672
Supplier number 3M 7100297488

Frequently asked questions about this product

Answered by specialists

How does the 3M Dual Lock SJ355D fastener work?: The mushroom-shaped heads interlock with an audible snap, providing a secure yet reclosable joint.
Which surfaces are suitable for this adhesive tape?: The acrylic adhesive bonds firmly to metals, glass, and plastics such as acrylic, polycarbonate, and ABS.
Is this tape suitable for outdoor applications?: Yes, it resists UV light, moisture, and temperatures from -30 °C to 70 °C, making it ideal for indoor and outdoor use.
How many opening and closing cycles does it support?: The closure can be opened and closed up to 1000 times before losing 50% of its original tensile strength.
Do you need separate hook and loop sides?: No, 3M Dual Lock is self-mating; you simply cut two pieces from the same roll to click them together.