3M Dual Lock Reclosable Fastener SJ3551CF, Black, 1 in x 50 yd, Type 400, 2 Roll/Case

• An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance
• Best suited for indoor and outdoor use
• Black, interlocking mushroom-shaped heads (400 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times
• Clear, acrylic, tape bonds well to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS
• Features good temperature resistance of 220°F (104°C)
• Mates with Type 170 and Type 250 stem densities to provide different strength combinations
• Strong fastener secures with an audible snap, verifying closure

3M Dual Lock Reclosable Fastener SJ3551CF is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution which bonds to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS. This fastener gives the adhesive a black appearance.

Unlock Simplicity
Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3551CF has exceptional strength through its interlocking mushroom-shaped heads (400 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products. We designed this fastener with a clear, acrylic, tape protected by a removable, film liner. This solid, pressure sensitive tape features a strong, durable bond that is heat, chemical and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3551CF, there is no need for any drilling, screwing or sewing tools which makes for quick installation.

Recommended Applications:

• Access panels
• Graphic attachment
• Specialty vehicles (interior attachments)
• General industrial attachment

Design Flexibility
3M™ Dual Lock™ Reclosable Fastener SJ3551CF consists of interlocking mushroom-shaped heads that easily slide over each other, allowing for positioning of parts before being snapped together. This fastening process creates a durable attachment and provides fast product assembly with great design flexibility. Our reclosable fasteners can also engage with different stem densities for varying levels of strength and system performance.

3M™ Dual Lock™ Reclosable Fasteners sound an audible snap when secure, which verifies closure of the attachment. To disengage, simply peel the pieces apart by hand. Our fasteners maintain their strength throughout multiple attachments and detachments. A lightweight alternative to metal fasteners, this product remains hidden beneath surfaces and does not interfere with the integrity of your material—providing aesthetic improvements and design flexibility.

Hundreds of Reattachments in a Snap
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners mate, the stems flex and the mushroom heads slide past each other. After passing the opposing mating piece, the stems snap back into their original position and the opposing mushroom heads interlock. These fasteners can provide high tensile strength but can be opened by simply cleaving or peeling open the closure. This product is well suited for many indoor and outdoor applications where a high strength and versatile reclosable fastening system is required.

Delivers Long-Lasting Performance
Not all design requirements are easily satisfied, but you can simplify your attachments. When you need a strong, reliable, yet removable closure, 3M™ Dual Lock™ Reclosable Fasteners are the easy alternative to traditional fastening methods such as screws, nuts or bolts.

Trusted 3M Dual Lock

The 3M Dual Lock Reclosable Fastener SJ3551CF offers a reliable fastening solution with its well-known brand and model. This product replaces screws and bolts, providing a hidden, snug fit that enhances the appearance of your projects. Its design ensures durability and ease of use.

Ideal for both indoor and outdoor use, this fastener suits a variety of applications. The SJ3551CF model is part of the Type 400 series, known for its strong interlocking mushroom-shaped heads, delivering dependable performance every time.

Strong Interlocking Design

The fastener features black, interlocking mushroom-shaped heads with a 400 stem density per square inch. This design provides up to five times the tensile strength of typical hook-and-loop products, ensuring a secure and durable bond that can be opened and closed repeatedly.

These stems flex and snap back into place with an audible click, confirming a secure closure. This mechanism allows for quick assembly and reliable fastening without the need for tools, making it perfect for various industrial and specialty vehicle applications.

Clear Acrylic Tape Backing

Equipped with a clear, acrylic tape, this fastener bonds well to metals, glass, and plastics like acrylics, polycarbonate, and ABS. The tape is pressure sensitive and protected by a removable film liner, providing a strong, durable bond resistant to heat, chemicals, and UV exposure.

This backing enhances design flexibility by allowing easy positioning before snapping parts together. The tape’s versatility supports a wide range of substrates, making it suitable for graphic attachments and access panels.

Dimensions And Format

This product comes in a 1 inch width by 50 yard length format, providing ample material for multiple fastening needs. The format supports quick installation without drilling or screwing, saving time and effort on projects.

Sold as 2 rolls per case, this pack size ensures you have enough fastener for larger jobs or multiple applications. The format and pack count make it convenient for both professional and DIY use.

Durable Temperature Resistance

The 3M Dual Lock SJ3551CF fastener withstands temperatures up to 220°F (104°C), making it suitable for environments with moderate heat exposure. This temperature resistance helps maintain a strong bond even under challenging conditions.

Its durability extends the life of your fastening solution, reducing the need for frequent replacements. This feature is especially useful for outdoor applications and specialty vehicles where temperature fluctuations occur.