Industrial-grade reclosable fastener with interlocking mushroom heads providing 5X stronger tensile strength than hook-and-loop products. Features 400 stem density, synthetic rubber adhesive, and 1000 closure cycles for reliable performance.
The 3M™ Dual Lock™ Reclosable Fastener SJ3541 is an innovative fastening solution featuring black interlocking mushroom-shaped heads with 400 stem density per square inch. This product delivers exceptional strength with up to 5X the tensile strength of typical hook-and-loop products, providing a durable and secure alternative to traditional fastening methods such as screws, nuts, and bolts. The fastener is constructed with a synthetic rubber-based black PE foam tape protected by a removable film liner, ensuring quick stick and short dwell time for efficient installation. With no need for drilling, screwing, or sewing tools, this pressure-sensitive adhesive fastener enables quick installation and professional results. The reclosable design allows for multiple attachments and detachments while maintaining strength throughout hundreds of reattachments. When engaged, the stems flex and mushroom heads interlock, creating a secure closure verified by an audible snap. Disengagement is simple—just peel the pieces apart by hand. This fastener mates with Type 170 and Type 250 stem densities to provide customizable strength combinations for various applications.
Designed for indoor use with a maximum operating temperature of 120°F (49°C), the 3M Dual Lock SJ3541 bonds exceptionally well to a variety of substrates including low surface energy plastics such as polyethylene and polypropylene. The product features a white polyolefin primary liner and maintains a closure life of 1000 cycles. This hidden fastener provides a snug fit and smooth aesthetic appearance, making it ideal for applications where traditional metal fasteners would be visible or compromise material integrity. The fastener is available in 1/2 inch width and 50 yard length per roll, with 4 rolls per case, making it suitable for both small-scale projects and industrial applications.
The 3M Dual Lock Reclosable Fastener SJ3541 is recommended for access panels, interior signage, decorative trim, office partitions, and product identification applications. Its design flexibility allows for positioning of parts before snapping together, creating durable attachments with fast product assembly. This lightweight alternative to metal fasteners remains hidden beneath surfaces and does not interfere with material integrity, providing aesthetic improvements and design flexibility for modern manufacturing and assembly requirements.
Key Features
- Black interlocking mushroom-shaped heads with 400 stem density per square inch for exceptional strength and durability
- Provides up to 5X the tensile strength of typical hook-and-loop fastening products
- Synthetic rubber-based adhesive bonds well to low surface energy plastics including polyethylene and polypropylene
- Reclosable design allows hundreds of reattachments while maintaining consistent strength and security
- Audible snap verification when secure, with simple hand-peel disengagement for easy removal
- No drilling, screwing, or sewing tools required for quick and efficient installation
- Compatible with Type 170 and Type 250 stem densities for customizable strength combinations
- Maintains strength through 1000 closure cycles for long-lasting performance
- Temperature resistant up to 120°F (49°C) suitable for indoor applications
- Hidden fastener provides smooth aesthetic appearance without interfering with material integrity
Technical Specifications
| Specification |
Value |
| Product Name | 3M Dual Lock Reclosable Fastener SJ3541 |
| Part Number | SJ3541 |
| 3M Product Number | SJ3541 |
| UPC Code | 00021200862762 |
| Product Color | Black |
| Product Form | Roll |
| Overall Width (Imperial) | 0.5 in |
| Overall Width (Metric) | 12.7 mm |
| Overall Length (Imperial) | 50 yd |
| Overall Length (Metric) | 45.72 m |
| Engaged Thickness (Imperial) | 0.23 in |
| Engaged Thickness (Metric) | 5.8 mm |
| Stem Density | 400 per square inch |
| Type Classification | Type 400 |
| Backing Material | Polyolefin |
| Primary Liner Material | White Polyolefin |
| Primary Liner Thickness (Imperial) | 5 mil |
| Primary Liner Thickness (Metric) | 0.13 mm |
| Adhesive Type | Synthetic rubber-based pressure sensitive |
| Adhesive Color | Black |
| Maximum Operating Temperature (Fahrenheit) | 120°F |
| Maximum Operating Temperature (Celsius) | 49°C |
| Closure Life Cycles | 1000 |
| Units per Case | 4 rolls |
| Smallest Saleable Unit | Roll |
| Flame Retardant | No |
| Indoor/Outdoor Rating | Indoor |
| Brand | 3M Dual Lock |
| Compatible Types | Mates with Type 170 and Type 250 stem densities |
| Tensile Strength Advantage | Up to 5X stronger than typical hook-and-loop products |
Order 3M Dual Lock Reclosable Fastener SJ3541 Black Type 400 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
