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.
FEATURES
- 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
- Suited for indoor or outdoor use
APPLICATIONS
Alternative to pressure sensitive adhesives
| Property | Values | Unit |
| Thickness | 2.57 | mm |
| 101 | mil | |
| Thickness Tolerance | ± 10 | % |
| Stems | 26 | Stems/cm2 |
| 170 | Stems/in2 | |
| Shelf Life | 24 | months |
