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SKU 7010374473
Legacy SKU 70006402450
UPC 00048011579726
Product Number SJ3741

3M Dual Lock Reclosable Fastener SJ3741 is a black, polypropylene reclosable fastener roll good without pressure sensitive adhesive. This fastener is available in a number widths and has a stem density of 400 stems per square inch.

  • Interlocking, mushroom-shaped stems snap together for strong, fast and easy attachment
  • Can be opened and re-closed in high cycle applications
  • Hidden component attachment enables clean show surface
  • Strong holding power reduces component rattling and vibration
  • Does not require special tools or processing equipment for installation
  • Audibly snaps together to form a secure, dependable and repeatable attachment
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On it's way to you May 10  

Qty

Minimum Order 1 Roll
Order Increment 1 Roll
  Multiple Application Use
  Versatile
  Easy To Use
  Fantastic Price
Product Dimensions
Imperial Metric
Length 50 yd 45.72 m
Shipping Dimensions
Weight 34.50014 lb
Length 20.90551 in
Width 20.90551 in
Height 7.59843 in
Color Black

PRODUCT FAQ

  1. What is the maximum weight that one roll of 3M™ Dual Lock™ Reclosable Fastener SJ3741 can hold?

    The maximum weight supported by this fastener depends on several factors, such as surface type, temperature, and humidity. However, it has a tensile strength of 120 pounds per square inch.

  2. Can I purchase a smaller size roll or more than one case at once?

    Yes! We offer this product in multiple sizes and quantities to suit your needs. Please contact us for information on ordering smaller rolls or bulk purchasing options.

  3. Is 3M™ Dual Lock™ Reclosable Fastener SJ3741 easy to install?

    Absolutely! This fastener comes without pressure-sensitive adhesive (PSA) so you have the flexibility to attach it using an adhesive that best suits your application. Simply align it with the mating surface and press firmly for an instant bond.

  4. Does the black color fade over time or when exposed to sunlight?

    No. This dual-lock reclosable fastener is made with weather-resistant acrylic adhesive which resists yellowing even after prolonged exposure to UV rays from sunlight or artificial light sources - keeping your application looking great over time.

3M™ Dual Lock™ Reclosable Fastener SJ3741 is a black roll good without pressure sensitive adhesive and with a stem density of 400. 3M™ Dual Lock™ Reclosable Fasteners without pressure sensitive adhesive can be attached to surfaces by sewing, stapling and ultrasonically welding to many polypropylene materials or use of liquid adhesives which bond polypropylene. Dual Lock fastener SJ3741 overcomes the often difficult alignment and installation problems of screws and hidden fasteners, offering simple installation with no special tools required. 3M™ Dual Lock™ Reclosable Fasteners are positive-locking, blind fasteners designed for attaching automotive trim components. The products feature mushroom-shaped polyolefin stems that snap together, forming a high tensile closure. Dual Lock fasteners are used primarily to secure rigid and semi-rigid surfaces such as trim or door panels, instrument panel bezels, headliners and other automotive interior and exterior trim.

How It Works
This reclosable fastener features mushroom-shaped polyolefin stems that snap together. When two pieces of 3M™ Dual Lock™ Reclosable Fastener are pressed together, 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.

Alignment and re-alignment are easy and no special tools are required. This means that they can be used to attach components before they enter the final assembly plant, thus helping to reduce the number of parts and the length of assembly time.

Stem Densities
3M™ Dual Lock™ Reclosable Fasteners can be mixed and matched to meet the needs of the application. Combinations of stem densities and the engaged area provide adjustable and proportional engagement and disengagement force. Dual Lock™ fasteners are offered in three different densities (stems per square inch): 170, 250 and 400. The Dual Lock fastener SJ3742 has 170 stems per square inch (25mm), offering the tightest hold, and can be mated to Type 170, 250 or 400.

Recommended Applications
3M™ Dual Lock™ Reclosable Fasteners can replace conventional mechanical fasteners in a wide range of assembly and attachment applications where reclosability or serviceability is desired. Dual Lock fasteners are used primarily to secure rigid and semi-rigid surfaces such as trim or door panels, instrument panel bezels, headliners and other automotive interior and exterior trim. Some examples of applications include:

  • Vehicle headliners
  • Attaching accessories and equipment
  • Attaching window and door trim panels
  • Vibration and sound damping control
  • CHMSL cover plates
  • Center console flanges
  • Interior trim
  • Sunroof rings

3M Science Delivers Closures You Can Count On
At 3M, we thrive on defying conventional wisdom, like the concept that fasteners can both durably attach and easily separate. 3M™ Dual Lock™ Reclosable Fasteners are ideal for many applications where a high strength, reclosable fastening system is required. 3M engineers have uniquely combined physics and materials science to bring the automotive industry reliable fasteners that supply high performance even after exposure to high moisture levels and wide temperature ranges. For applications that require a slide-in piece and multiple closures, look no further than the long-lasting durability of the 3M™ Dual Lock™ Reclosable Fastener SJ3741. It is yet another outstanding example of how 3M technologies advance operations in the automotive industry, providing both ease of use and superior results.

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