Professional reclosable fastener with 400 stem density mushroom heads, 1000 closure cycles, clear acrylic adhesive, bonds to metals, glass, and plastics, temperature resistant to 220°F, audible snap verification, no tools required.
3M™ Dual Lock™ Reclosable Fastener SJ3561 is a professional-grade fastening solution designed as a convenient alternative to traditional fastening methods such as screws, nuts, and bolts. This innovative product features clear, interlocking mushroom-shaped heads with 400 stem density per square inch, providing exceptional strength and durability that can withstand up to 1000 closure cycles. The fastener delivers up to 5X the tensile strength of typical hook-and-loop products while maintaining a clean, transparent appearance that doesn't interfere with aesthetic design requirements.
The SJ3561 comes in a 1-inch width by 50-yard length format, with 2 rolls per case, making it ideal for both small-scale projects and industrial applications. The clear acrylic adhesive bonds reliably to a wide variety of substrates including metals, glass, and plastics such as acrylics, polycarbonate, and ABS. With a maximum operating temperature of 220°F (104°C) and excellent heat, chemical, and UV resistance, this product performs consistently in both indoor and outdoor environments. The fastener creates an audible snap when properly engaged, providing immediate verification of secure closure.
Designed for quick installation without requiring drilling, screwing, or sewing tools, the 3M Dual Lock SJ3561 offers exceptional design flexibility through its unique stem structure that allows easy repositioning before final engagement. The product can be opened by simply peeling the pieces apart by hand, and it maintains its strength throughout multiple attachments and detachments. Recommended applications include architectural panels, graphic attachments, specialty vehicle interior attachments, general industrial attachment, and toll transponders, making it an excellent choice for industries ranging from construction and electronics to medical devices and aerospace.
Key Features
- Clear interlocking mushroom-shaped heads with 400 stem density per square inch for strong, durable fastening
- Up to 5X greater tensile strength compared to traditional hook-and-loop fasteners
- Reclosable design allows opening and closing multiple times with up to 1000 closure cycles
- Compatible with Type 170 and Type 250 stem densities for customizable strength combinations
- Clear acrylic adhesive bonds reliably to metals, glass, acrylics, polycarbonate, and ABS plastics
- Audible snap verification confirms secure closure and proper engagement
- Maximum operating temperature of 220°F (104°C) with excellent heat, chemical, and UV resistance
- Quick installation without drilling, screwing, or sewing tools required
- Suitable for both indoor and outdoor applications
- Hidden fastener provides smooth aesthetic appearance without visible attachment points
Technical Specifications
| Specification |
Value |
| Product Number | SJ3561 |
| 3M ID | 7000126328 |
| UPC Code | 00021200450273 |
| Product Form | Roll |
| Overall Width (Imperial) | 1 in |
| Overall Width (Metric) | 25.4 mm |
| Overall Length (Imperial) | 50 yd |
| Overall Length (Metric) | 45.72 m |
| Stem Density | 400 per square inch |
| Engaged Thickness (Imperial) | 0.23 in |
| Engaged Thickness (Metric) | 5.8 mm |
| Adhesive Type | Clear Acrylic Adhesive |
| Adhesive Color | Transparent |
| Backing Material | Polyolefin |
| Product Color | Transparent |
| Primary Liner | Clear Polyolefin |
| Primary Liner Thickness (Imperial) | 4 mil |
| Primary Liner Thickness (Metric) | 0.1 mm |
| Primary Liner Color | Transparent |
| Maximum Operating Temperature (Fahrenheit) | 220°F |
| Maximum Operating Temperature (Celsius) | 104°C |
| Closure Life | 1000 cycles |
| Indoor/Outdoor | Indoor/Outdoor |
| Flame Retardant | No |
| Units per Case | 2 rolls |
| Smallest Saleable Unit | Roll |
| Brand | Dual Lock™ |
| Applications | Interior Mirror & Fixture Attachment, Trim & Molding Attachment, Wall & Door Panel Attachment |
| Industries | Construction, Electronics, Furniture, General Industrial, MRO, Medical, Military & Government, Packaging, Retail, Specialty Vehicles, Transportation |
| Recommended Uses | Architectural panels, Graphic attachment, Specialty vehicles interior attachments, General industrial attachment, Toll transponders |
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