3M Dual Lock Reclosable Fastener SJ3550CF, Black, 1/2 in x 50 yd, Type 250, 4 Rolls/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 (250 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, Type 250 or Type 400 stem densities to provide different strength combinations
• Strong fastener secures with an audible snap, verifying closure

3M Dual Lock Reclosable Fastener SJ3550CF 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 SJ3550CF has exceptional strength through its interlocking mushroom-shaped heads (250 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 SJ3550CF, 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) and General industrial attachment Design Flexibility: 3M Dual Lock Reclosable Fastener SJ3550CF 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 SJ3550CF offers a reliable fastening solution from a trusted brand. This model features black interlocking mushroom-shaped heads that provide a strong hold. Its design replaces screws and bolts for a cleaner, hidden attachment.

Ideal for various projects, this fastener is a convenient alternative that delivers durability and ease of use. The SJ3550CF model ensures a secure fit with an audible snap, confirming closure every time.

Compact Size And Length

This fastener comes in a 1/2 inch width and a 50-yard length, making it versatile for many applications. The slim size allows it to fit discreetly under surfaces without interfering with the material’s look or integrity.

With 4 rolls per case, you get ample length for multiple projects or large-scale use. The dimensions make it suitable for both small and extensive fastening needs, indoors or outdoors.

Strong Type 250 Fastening

The Type 250 grade features 250 stem density per square inch, providing up to five times the tensile strength of typical hook-and-loop fasteners. This density ensures a durable and reusable bond that can be opened and closed many times.

Its interlocking mushroom heads slide easily for positioning before snapping together securely. This strength level is perfect for applications requiring a reliable yet removable fastening system.

Durable Black Tape Format

The fastener uses a black, acrylic tape backing that bonds well to metals, glass, and plastics like acrylics, polycarbonate, and ABS. This tape is pressure-sensitive and heat resistant up to 220°F (104°C), ensuring long-lasting performance.

Its black color provides a sleek, hidden look under surfaces, enhancing aesthetics. The tape’s durability makes it suitable for both indoor and outdoor use, resisting chemicals and UV exposure.

Convenient Four Rolls Case

Each case contains 4 rolls of the 3M Dual Lock Reclosable Fastener SJ3550CF, providing a practical quantity for various projects. This pack size supports efficient inventory management and bulk use without frequent reordering.

The rolls are easy to handle and install, saving time on fastening tasks. This format suits industrial, automotive, and general attachment needs where multiple fasteners are required.