through rough waters
3M™ Dual Lock™ Reclosable Fastener SJ3442, Black, 2 in x 45 yd, Type 170, 1 Roll/Case
$650.22 / Roll
| SKU | 7100406825 |
|---|---|
| Legacy SKU | 70011147413 |
| UPC | 00068060767578 |
| Product Number | SJ3442 |
3M Dual Lock Reclosable Fastener SJ3442 is the easy and clear alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution, which can be opened and closed multiple times. This fastener is most commonly attached by applying hot melt, epoxy or liquid adhesive.
- Black, interlocking mushroom-shaped heads (170 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times
- Mates with Type 250 or Type 400 stem densities to provide different strength combinations
- Non-adhesive back for attachment with hot melt, epoxy or liquid adhesives
- Strong fastener secures with an audible snap, verifying closure
- An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance
- Features good temperature resistance of 220°F (104°C), though temperature resistance may change based on adhesive used
Product Dimensions |
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Shipping Dimensions |
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| Weight | 5.665 lb |
|---|---|
| Length | 21 in |
| Width | 21 in |
| Height | 2.8 in |
| Color | Black |
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PRODUCT FAQ
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How long is the roll of 3M Dual Lock fastener, and can I cut it to the size I need?
The roll is 45 yards long, and yes, you can absolutely cut it to whatever length you need for your application. This makes it very versatile for different projects and requirements.
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What does "Type 170" mean, and how strong is this fastener?
Type 170 refers to the hook profile design that provides a strong, reusable hold. It's capable of holding up to 0.5 lbs per square inch, making it ideal for medium-duty applications where you need a reliable bond that can be opened and closed repeatedly.
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Is 3M Dual Lock weatherproof, and can I use it outdoors?
Yes, 3M Dual Lock is designed to perform in both indoor and outdoor environments and can withstand various weather conditions. The adhesive and materials are durable, though for long-term outdoor exposure in extreme climates, I'd recommend testing it in your specific environment first.
The 3M™ Dual Lock™ Reclosable Fastener SJ3442 represents a breakthrough in fastening technology, combining exceptional durability with secure holding capabilities. At its core, this innovative fastening system features precisely engineered interlocking mushroom-shaped stems, with an impressive density of 170 stems per square inch. This specialized design enables the fastener to achieve remarkable tensile strength without requiring traditional installation methods such as drilling, screwing, or mechanical hardware. Instead, the fastener is conveniently attached using contemporary adhesive solutions including hot melt, epoxy, or liquid adhesive formulations, making it an excellent alternative to conventional pressure-sensitive adhesive options.
Design FlexibilityThe architectural design of the 3M™ Dual Lock™ Reclosable Fastener SJ3442 centers on its interlocking mushroom-shaped stem configuration, which allows the individual components to smoothly slide across one another. This engineering approach provides significant advantages during assembly, enabling technicians and manufacturers to carefully position parts before final engagement. Once positioned correctly, the fastener components snap together with an audible confirmation sound, creating a robust and long-lasting bond while maintaining exceptional flexibility in product design. The system's versatility extends further, as different stem density configurations can be combined to achieve varying levels of strength and performance characteristics tailored to specific application requirements.
The sensory feedback provided by the audible snap upon secure closure offers valuable verification that the attachment has been properly engaged. When removal becomes necessary, the fastener can be effortlessly disengaged by simply peeling the components apart by hand, without requiring tools or specialized equipment. Despite numerous cycles of attachment and detachment, these fasteners consistently maintain their original holding strength and reliability. As a lightweight alternative to traditional metal fastening solutions, this product remains inconspicuously concealed beneath surfaces and avoids compromising the structural or aesthetic integrity of the underlying material, thereby enhancing both visual appeal and design freedom.
Hundreds of Reattachments in a SnapWhen two 3M™ Dual Lock™ Reclosable Fastener components are engaged, the flexible stems bend and compress, allowing the mushroom-shaped heads to slide smoothly past their mating counterparts. Once the opposing fastener has passed through the stem structure, the stems automatically return to their original configuration, causing the mushroom heads to securely interlock with impressive holding force. This mechanism delivers substantial tensile strength while remaining easily reversible through simple hand peeling or cleaving actions. The fastener system demonstrates exceptional suitability for numerous indoor applications where a combination of high-performance strength and reliable, removable closure functionality is essential.
Delivers Long-Lasting PerformanceComplex design requirements often demand innovative solutions that simplify the assembly and fastening process. The 3M™ Dual Lock™ Reclosable Fastener provides a straightforward and effective alternative to time-consuming traditional fastening methodologies such as screws, nuts, and bolts. When your project specifications call for a fastening solution that is simultaneously strong, dependable, and easily reversible, this reclosable fastener system offers the practical answer to modern assembly challenges.
