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3M™ Dual Lock™ Reclosable Fastener SJ3781, Roll Good with PSA, Stem Density 250, Black, 1 in x 50 yd, 8 Roll/Case, Bulk
$166.48 / Roll
| SKU | 7100274683 |
|---|---|
| Legacy SKU | 75347308944 |
| UPC | 00638060744161 |
| Product Number | SJ3781 |
3M Dual Lock Reclosable Fastener SJ3781 is a black, polypropylene reclosable fastener roll good with pressure sensitive adhesive. This fastener is available in a number widths and has a stem density of 250 stems per square inch.
- Interlocking, mushroom heads allow flexibility in alignment for easy attachment of components
- 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 any special tools or processing equipment for installation
- Can attach components before entering final assembly plant, helping to reduce parts and assembly time
Product Dimensions |
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Shipping Dimensions |
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| Weight | 33.446 lb |
|---|---|
| Length | 20.9 in |
| Width | 20.9 in |
| Height | 10.6 in |
| Color | Black |
|---|
PRODUCT FAQ
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What is the stem density of the 3M™ Dual Lock™ Reclosable Fastener SJ3781?
The stem density of this fastener is 250 stems per square inch.
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How wide is each roll in the 8 Roll/Case package?
Each roll in the case measures 1 inch wide and contains 50 yards of material.
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Does the SJ3781 come with a pressure-sensitive adhesive (PSA) backing?
Yes, this product features a PSA backing for easy application on various surfaces.
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Can I purchase the SJ3781 rolls individually or only by bulk cases?
This particular product is typically sold in bulk cases containing 8 rolls each.
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Is the color of this reclosable fastener black as specified in its description?
Yes, the color of this model is indeed black, ensuring a discreet yet secure fastening solution.
3M Dual Lock Reclosable Fastener SJ3781 is a black, roll good with pressure sensitive adhesive and a stem density of 250. This fastener is designed to overcome the challenges of aligning and installing screws and hidden fasteners. It offers a simple installation process without the need for additional tools. The Dual Lock fastener SJ3781 is a positive-locking, blind fastener specifically designed for attaching automotive trim components. It features mushroom-shaped polyolefin stems that snap together, creating a high tensile closure. This fastener is primarily used 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
The 3M Dual Lock Reclosable Fastener has mushroom-shaped polyolefin stems that snap together. When two pieces of the fastener are pressed together, the stems flex and the mushroom heads slide past each other. Once they pass the opposing mating piece, the stems snap back into their original position and the opposing mushroom heads interlock. These fasteners provide high tensile strength but can be easily opened by cleaving or peeling open the closure. The alignment and re-alignment of these fasteners are effortless, and no special tools are required. This makes them ideal for attaching components before they enter the final assembly plant, reducing the number of parts and assembly time.
Stem Densities
3M Dual Lock Reclosable Fasteners offer the flexibility to mix and match stem densities to meet specific application needs. The combination of stem densities and engaged area allows for adjustable and proportional engagement and disengagement force. The Dual Lock fasteners are available in three different stem densities: 170, 250, and 400 stems per square inch. The Dual Lock fastener SJ3781 has a stem density of 250 stems per square inch, providing the tightest hold. It can be mated to Type 170, 250, or 400 fasteners.
Recommended Applications
3M Dual Lock Reclosable Fasteners are a versatile alternative to conventional mechanical fasteners in various assembly and attachment applications where reclosability or serviceability is desired. These fasteners are primarily used 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
3M Dual Lock Reclosable Fasteners are designed to provide a durable and easily separable fastening system. These fasteners are ideal for applications that require a high strength, reclosable solution. 3M engineers have combined physics and materials science to create fasteners that deliver high performance even after exposure to high moisture levels and wide temperature ranges. The 3M Dual Lock Reclosable Fastener SJ3781 is a long-lasting and reliable option for applications that require a slide-in piece and multiple closures. It showcases how 3M technologies advance operations in the automotive industry, offering both ease of use and superior results.
