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SKU 7010383531
Legacy SKU 70070428811
UPC 00021200863707
Catalog Number SJ3442
Product Number SJ3442

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.

  • 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
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On it's way to you May 24  

Qty

Minimum Order 4 Rolls
Order Increment 4 Rolls
  Multiple Application Use
  Versatile
  Easy To Use
  Fantastic Price
Product Dimensions
Imperial Metric
Length 50 yd 45.72 m
Shipping Dimensions
Weight 6.07814 lb
Length 20.98425 in
Width 20.98425 in
Height 2.79528 in
Color Black

PRODUCT FAQ

  1. What is 3M™ Dual Lock™ Reclosable Fastener SJ3442?

    3M™ Dual Lock™ Reclosable Fastener SJ3442 is a high performance adhesive backed reclosable fastening system that offers long-term durability with thousands of openings and closings without losing holding strength. It consists of interlocking mushroom-shaped heads that easily slide over each other, allowing for easy detachability with no snap-back.

  2. What size and color options are available for this product?

    The 3M™ Dual Lock™ Reclosable Fastener SJ3442 comes in black, and is sold in rolls measuring at 1/2 in x 50 yd. This product also belongs to Type

  3. 170, and the pack contains four cases.

    How can I use this product?

  4. You may use the reclose-ability feature of the dual lock design on products within various industries such as Health care, Specialty Vehicles, Agriculture & Construction Equipment , Automotive etc., as well as doors or enclosure assembly work where reinst

    . Will my application be able to handle harsh environments?

  5. . Yes! Our reclosable fasteners have great temperature resistance ranging from -40°F (-40°C) up to +250°F (121°C). Resist UV light exposure even after repeated closure while dampens vibration due to its unique ability to adhere different surfaces together

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.
Unlock Simplicity

Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3442 has exceptional strength through its interlocking mushroom-shaped heads (170 stem density per square inch). With 3M™ Dual Lock™ Reclosable Fastener SJ3442, 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
Design Flexibility

3M™ Dual Lock™ Reclosable Fastener SJ3442 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. 3M 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. 3M 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 applications where a good performance, high strength, 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.

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