3M™ Dual Lock™ Reclosable Fastener SJ3807 is a black, polypropylene 20 mm x 26 mm reclosable fastener with a base that pops into a channel of precise dimension. The surface is lined with polyolefin mushroom stems of density 400 per 25mm², and can be paired with other stem densities for varying levels of strength. Stems offer more strength than hook and loop closures yet easily peel apart.
- Interlocking mushroom-shaped stems snap together for strong, fast and easy attachment
- Provides hidden component attachment, preventing disruption on the show surface
- 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
|Width||0.787 in||20 mm|
What is 3M™ Dual Lock™ Reclosable Fastener SJ3807?
3M™ Dual Lock™ Reclosable Fastener SJ3807 is a high strength, pressure sensitive, clear acrylic adhesive backed fastening system.
What is the Ultimate Pop-in Piece Part?
The Ultimate Pop-in Piece Part provides easy alignment and installation of the dual lock reclosable fasteners. It snaps into place on each surface to be joined together.
Can I use this fastener outdoors?
Yes, you can use it outdoors as it has UV resistance that protects against sunlight.
What are the dimensions of the stem density and black piece?
The stem density is 400 stems per square inch, and the black piece measures at 20 mm x 26 mm.
Is there any warranty offered with this product?
Yes, we offer a limited warranty for material defects. If you face any problems with its quality or functionality within one year of purchasing your product from us - we will replace it free of charge!
Designed to Hold
3M™ Dual Lock™ Reclosable Fastener SJ3807 is a black, polypropylene 20 mm x 26 mm reclosable fastener with a base that pops into a channel of precise dimension, and has a stem density of 400 stems per 25mm². This product overcomes the often difficult alignment and installation problems of screws and hidden fasteners, offering simple installation with no additional tools required.
3M™ Dual Lock™ Reclosable Fasteners are positive-locking, blind fasteners designed for attaching automotive trim components. Pop-In parts like this attach without the use of pressure sensitive adhesive, and come with a variety of bases that can be inserted into holes of precise dimension. They are easy to install and require no special equipment or skills. 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 pop-in fastener is designed to be inserted into a same-width channel where attachment is desired. The polypropylene base grips the inside of the channel and holds tight. The fastener can be mated to a second Dual Lock fastener attached to a piece of trim or other part – when the two fasteners meet, the two parts are firmly secured together.
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners are pressed together, the stems flex and the mushroom heads pop into 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 the Dual Lock fastener can be used to attach components before they enter the final assembly plant, helping to reduce the number of parts and assembly time.
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. Dual Lock fastener SJ3807 has 400 stems per square inch (25mm), offering the tightest hold, and can be mated to Type 170 or 250. It should not be mated with another Type 400 fastener because the engagement would be so tight that detachment would likely result in damage to the parts.
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 a pop-in piece and multiple closures, look no further than the long-lasting durability of the 3M™ Dual Lock™ Reclosable Fastener SJ3807 Ultimate Pop-In Piece Part. It is yet another outstanding example of how 3M technologies advance operations in the automotive industry, providing both ease of use and superior results.