Size : 6inch wide or 1inch wide x 50yards length.
- 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
- Mates with Type 170, 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
Durable and secure, 3m dual lock sj3440 has exceptional strength through its interlocking mushroom-shaped heads (250 stem density per square inch). With 3M™ Dual Lock™ Reclosable Fastener SJ3440, there is no need for any drilling or screwing. This fastener is most commonly attached by applying hot melt, epoxy or liquid adhesive.
Recommended Applications: Alternative to pressure sensitive adhesives