1. 3M Canada

3M™ Dual Lock™ Reclosable Fastener SJ3440

3M ID 7000001979
  • 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
 More...
Specifications
Adhesive Type
Non Adhesive
Alternative Sale Availability
6. This item is for industrial use only and there are no VOC restrictions.
Brand
Dual Lock™
Closure Life
1000
Colour Family
Black
Engaged Thickness (Imperial)
0.16 in
Engaged Thickness (Metric)
4.1 mm
Flame Retardant
No
Industries
Construction, Electronics, Furniture, General Industrial, Medical, Military and Government, MRO, Packaging, Retail, Specialty Vehicle, Transportation
Low Profile
No
Maximum Operating Temperature (Celsius)
93 °C
Maximum Operating Temperature (Fahrenheit)
200 °F
Overall Length (Imperial)
50 yd
Overall Length (Metric)
45.72 m
Overall Width (Imperial)
1 in
Overall Width (Metric)
25.4 mm
Product Colour
Black
Product Form
Roll
Product Key
SJ3440
Regulatory Key
AD-00786
Size (Imperial)
1 in x 50 yd
Size (Metric)
25.4 mm x 45.72 m
Stem Density
250
Units per Case
2
Details
  • 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

The 3M™ Dual Lock™ Reclosable Fastener SJ3440 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 black fastener is most commonly attached by applying hot melt, epoxy, or liquid adhesive.

Durable and secure, the 3M™ Dual Lock™ Reclosable Fastener 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.

Suggested Applications

  • General industrial, packaging, point of purchase displays, exhibits, electronics, construction, furniture and maintenance, repair and operations (MRO)
  • Attach doors, access panels, signs and display components
  • for use with a variety of 3M™ Hot Melt/Liquid Adhesives, can be bonded to wood, foam, fabric or similar materials
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