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3M™ Dual Lock™ Reclosable Fastener SJ3481 400 Black, 2 in x 48 in 0.35 in (8.9 mm), 20 per case

3M ID  70070115012    UPC#  00021200670152    3M Product Number  SJ3481     
3M™ Dual Lock™ Reclosable Fastener SJ3481 400 Black
3M™ Dual Lock™ Reclosable Fastener SJ3481 400 Black
3M Dual Lock Reclosable Fastener 400 Stems Per Inch Black
3M(TM) Dual Lock(TM) SJ4580 Stem Close Up
3M™ Dual Lock™ Reclosable Fastener SJ3481 is up to five times stronger in tensile than hook-and-loop fasteners. As tough, mushroom-shaped stems snap together, they provide both the tensile strength to replace traditional fasteners and a cleaner looking result. These fasteners can be opened and closed, up to 1,000 times before losing 50% of the original tensile strength.
  • Snap-in-place installation replaces screws and nails, snaps, and rivets
  • Reclosable system is up to five times stronger in tensile than typical hook-and-loop fasteners
  • Non-adhesive rigid back to be used in partnership with hot melt or liquid adhesives
  • Black fastener is hidden when closed and provides clean, smooth appearance
  • Ideal for indoor and outdoor use to attach doors, access panels, cushions, headliners, signs and display components
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Solve Attachment Challenges in an Instant
The mushroom-shaped heads on the 3M™ Dual Lock™ Reclosable Fastener SJ3481 easily slide over each other, allowing for the positioning of parts before they are snapped together to create a firm fastening attachment. When mated, the fasteners are hidden from view and leave an unbroken surface to help create a smooth, clean appearance.

Recommended Applications

  • Access panels on exercise equipment
  • Attaching accessories to computer monitors
  • Interior signage
  • Decorative trim attachment
  • Kick plates on office partitions

Select the right Fastener for the Job
3M™ Dual Lock™ Reclosable Fastener SJ3481 is a "Type 400," meaning its surface has approximately 400 stems per square inch. Stems and heads are manufactured from polyolefin and the backing is made of rigid polypropylene. For use with a variety of hot melt or liquid adhesives, it can be bonded to aluminum, steel, acrylic, rigid vinyl, polycarbonate, polystyrene, glass and sealed wood. This construction allows for better contact with surfaces having slight texturing or surface irregularities.To gain various levels of holding power, this fastener can be mated with different 3M™ Dual Lock™ Reclosable Fastener types. Suggested combinations of mated fasteners are:

  • Type 250 to Type 170
  • Type 250 to Type 250 Type 170 to Type 400 Type 250 to Type 400

How it works:
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners are pressed together, the stems flex and the mushroom heads slide past each other. After passing the mushroom heads on the opposing mating piece, a stem snaps up into its original position, interlocking with the opposing heads. The audible snap signals the fastener is engaged. The attachment formed may be as effective as screws or rivets, but will peel apart for repositioning. 3M™ Dual Lock™ Reclosable Fasteners are used extensively in attaching access panels, interior signage, decorative trim and kick plates on office partitions.

Today, designers, manufacturers, and consumers expect more options to secure, attach and connect surfaces. 3M™ Dual Lock™ Reclosable Fasteners offer instant installation and high-strength attachment, yet can be opened as easily as zippers. That functional flexibility, as well as superior aesthetics, reduced weight, and savings in labor and installation costs, make these innovative fasteners a popular and effective solution.


 Adhesive Type‎‎ Non Adhesive
 Brand‎‎ Dual Lock
 Closure Life‎‎ 1000
 Color‎‎ Black
 Engaged Thickness‎‎ 0.2 Inch
 Flame Retardant‎‎ No
 Industries‎‎ Transportation,‎ Specialty Vehicle,‎ Construction,‎ Automotive,‎ Furniture,‎ Medical,‎ Military & Government,‎ General Industrial,‎ Retail,‎ MRO,‎ Electronics,‎ Packaging
 Length‎‎ 48 Inch
 Length (Metric)‎‎ 1.21 m
 Low Profile‎‎ No
 Maximum Operating Temperature (Celsius)‎‎ 93 Degree Celsius
 Maximum Operating Temperature (Fahrenheit)‎‎ 200 Degree Fahrenheit
 Product Form‎‎ Box
 Stem Density‎‎ 400
 Width‎‎ 2 Inch
 Width (Metric)‎‎ 50.8 mm