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SKU 7010301578
Legacy SKU 70070751659
UPC 00021200381683
Product Number SJ3756

3M Dual Lock Reclosable Fastener SJ3756, Roll Good with Pressure Sensitive Adhesive, Black is a reclosable fastener with a rigid polypropylene backing. It has a stem density of 170 stems per square inch. The mushroom-shaped stems interlock to supply very high tensile strength and replace mechanical fasteners in many applications.

  • Interlocking mushroom-shaped stems snap together to form a strong, fast and easy attachment
  • Strong holding power reduces the rattling and vibration of components
  • Resistant to high temperatures and solvents
  • Does not require any special tools or processing equipment for installation
  • Audibly snaps together for a secure, dependable and repeatable attachment
  • Mates with other stem densities to achieve a variety of engagement and disengagement forces
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On it's way to you May 17  


Minimum Order 8 Rolls
Order Increment 8 Rolls
  Multiple Application Use
  Easy To Use
  Fantastic Price
Product Dimensions
Imperial Metric
Length 45 yd 41.148 m
Shipping Dimensions
Weight 50.69971 lb
Length 20.9 in
Width 20.9 in
Height 10.6 in
Color Black


  1. What is 3M Dual Lock Reclosable Fastener SJ3756, Roll Good with PSA, and how does it work?

    3M™ Dual Lock™ Reclosable Fastener SJ3756 is a pressure-sensitive, high-tack acrylic adhesive-backed reclosable fastener designed for applications requiring high strength and durability. The stem density of the SJ3756 is 170 stems per square inch, which provides good holding power.

  2. How large are the rolls of 3M Dual Lock Reclosable Fastener SJ3756?

    The rolls of 3M™ Dual Lock™ Reclosable Fastener SJ3756 measure exactly 1 inch in width by 45 yards long. This length will allow you to use plenty of tape for many projects without running out quickly.

  3. Can I purchase multiple rolls of this product at once?

    Sure! One case contains eight (8) rolls that include a black color scheme. This means you can have more backup tapes while making sure your materials remain securely fastened in place; just ensure to handle them correctly before finalizing your project!

Convenient for Automotive Trim

Ideal for attaching automotive trim components, 3M™ Dual Lock™ Reclosable Fastener SJ3756 provides a high-strength closure that is easy to assemble and just as easy to open and reclose in high cycle applications. Moreover, the pieces audibly snap together with a satisfying click to form a secure, dependable and repeatable attachment.

3M™ Dual Lock™ Reclosable Fastener Roll Goods with Pressure Sensitive Adhesive overcome the often difficult alignment and installation problems of screws and hidden fasteners. Designed with hundreds of interlocking mushroom-shaped stems, this polypropylene fastener can replace conventional attachments such as screws or adhesives, which can be time-consuming to fit and assemble, may weaken the part, or are susceptible to vibration and weather extremes. Dual Lock fasteners are constructed with polyolefin stems and hold tight regardless of high heat, cold, moisture or humidity. These fasteners are also an excellent attachment solution when vibration is an issue – not only do the fasteners hold tight, but actually reduce vibration and rattling.

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 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 is easy with no special tools required. This means that these fasteners can be used to attach components before they enter the final assembly plant, helping to reduce the number of parts and the length of assembly time.

Stem Densities

Combinations of stem densities and the engaged area provide adjustable and proportional engagement and disengagement force to meet application requirements. Dual Lock fasteners are offered in three different densities (stems per square inch): 170, 250, and 400. The Dual Lock fastener SJ3756 has 170 stems per square inch (25mm), offering the lightest 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. Other application examples include attaching accessories and equipment, window and door trim panels, sunroof rings and vibration and sound damping control.

3M Science Delivers Closures You Can Count On

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 multiple closures, look no further than the long-lasting durability of the 3M™ Dual Lock™ Reclosable Fastener SJ3756. 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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