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  6. 3M™ Dual Lock™ Reclosable Fasteners SJ3550CF

3M™ Dual Lock™ Reclosable Fasteners SJ3550CF

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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

Clear, acrylic, tape bonds well to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS

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Details

Highlights
  • 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
  • Clear, acrylic, tape bonds well to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS
  • 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)
  • Best suited for indoor and outdoor use

3M™ Dual Lock™ Reclosable Fastener SJ3550CF is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution which bonds to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS. This fastener gives the adhesive a black appearance.

Unlock Simplicity
Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3550CF has exceptional strength through its interlocking mushroom-shaped heads (250 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products. We designed this fastener with a clear, acrylic, tape protected by a removable, film liner. This solid, pressure sensitive tape features a strong, durable bond that is heat, chemical and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3550CF, there is no need for any drilling, screwing or sewing tools which makes for quick installation.

3M™ Dual Lock™ Reclosable Fastener SJ3550CF consists of interlocking mushroom-shaped heads that easily slide over each other

3M™ Dual Lock™ Reclosable Fasteners are available in three stem densities to customize for the strength requirements of your project

Recommended Applications:
  • Access panels
  • Graphic attachment
  • Specialty vehicles (interior attachments)
  • General industrial attachment

Design Flexibility
3M™ Dual Lock™ Reclosable Fastener SJ3550CF consists of interlocking mushroom-shaped heads that easily slide over each other, allowing for positioning of parts before being snapped together. This fastening process creates a durable attachment and provides fast product assembly with great design flexibility. Our reclosable fasteners can also engage with different stem densities for varying levels of strength and system performance.

3M™ Dual Lock™ Reclosable Fasteners sound an audible snap when secure, which verifies closure of the attachment. To disengage, simply peel the pieces apart by hand. Our fasteners maintain their strength throughout multiple attachments and detachments. A lightweight alternative to metal fasteners, this product remains hidden beneath surfaces and does not interfere with the integrity of your material—providing aesthetic improvements and design flexibility.

Hundreds of Reattachments in a Snap
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners mate, the stems flex and the mushroom heads slide past each other. After passing the opposing mating piece, the stems snap back into their original position and the opposing mushroom heads interlock. These fasteners can provide high tensile strength but can be opened by simply cleaving or peeling open the closure. This product is well suited for many indoor and outdoor applications where a high strength and versatile reclosable fastening system is required.

Delivers Long-Lasting Performance
Not all design requirements are easily satisfied, but you can simplify your attachments. When you need a strong, reliable, yet removable closure, 3M™ Dual Lock™ Reclosable Fasteners are the easy alternative to traditional fastening methods such as screws, nuts or bolts.


When it comes to innovative fastening solutions, you can depend on 3M Dual Lock Reclosable Fastener SJ3550CF

Typical properties

Adhesive Color

Black

Adhesive Type

Acrylic, Clear Acrylic Adhesive

Application

Interior Mirror & Fixture Attachment, Mounting & Trim Attachment, Upholstery & Seating Attachment

Backing (Carrier) Material

Polyolefin, Polypropylene

Brands

Dual Lock™

Closure Life

1000

Engaged Thickness (Imperial)

0.23 in

Engaged Thickness (Metric)

5.8 mm

Flame Retardant

No

Indoor/Outdoor

Indoor/Outdoor

Industries

Automotive, Construction, Electronics, Furniture, General Industrial, MRO, Medical, Military & Government, Packaging, Retail, Specialty Vehicle, Transportation

Maximum Operating Temperature (Celsius)

93 ℃, 104 ℃

Maximum Operating Temperature (Fahrenheit)

200 ℉, 220 ℉

Primary Liner

Clear Polyolefin

Primary Liner Color

Transparent

Primary Liner Thickness (Imperial)

4 mil

Primary Liner Thickness (Metric)

0.1 mm

Product Color

Black

Product Form

Roll

Product Type

Fastener

Smallest Saleable Unit

Roll

Stem Density

250

Units per Case

1.0,2.0

Overall Length (Imperial)

50 yd

Overall Length (Metric)

45.7 m, 45.72 m

Overall Width (Imperial)

0.5 in, 0.75 in, 1 in, 2 in, 6 in

Overall Width (Metric)

12.7 mm, 19.05 mm, 25.4 mm, 50.8 mm, 152.4 mm

Resources

Regulatory Data Sheet

Document Number: MSDS_3906930_US_EN_RDS

(PDF , 0B)

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For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.