3M Dual Lock SJ3540 Fastener Type 250 China Supplier Wholesale Price & Bulk Supply
3M Dual Lock Reclosable Fastener SJ3540 – The Ultimate Hidden Fastening Solution
When your project demands a secure, repeatable, and invisible closure without the hassle of drilling or traditional mechanical fasteners, 3M Dual Lock Reclosable Fastener SJ3540 is your go-to choice.
Featuring mushroom-shaped heads that snap together tightly, the SJ3540 offers up to 5x the tensile strength of standard hook-and-loop fasteners. Backed by a high-performance, pressure-sensitive rubber adhesive, it bonds instantly to various low-surface-energy substrates, including plastics, powder-coated paints, and smooth surfaces.
Key Features & Why Choose Us
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Premium Performance, Unbeatable Value: We supply authentic 3M quality at a highly competitive price, ensuring you get the best cost-to-performance ratio for bulk orders and industrial applications.
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High Stem Density (Type 250): Features 250 stems per square inch, mating perfectly with itself or Type 170 and Type 400 stems to customize your closure strength.
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Instant Bonding: The rubber-based adhesive provides excellent initial tack, making installation quick, clean, and efficient.
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Audible "Snap" Assurance: You can feel and hear when the fastener is securely locked in place.
Technical Specifications
Below is the detailed technical data for the 3M SJ3540 to help you evaluate your project requirements:
| Property | Specification Details |
| Product Name | 3M™ Dual Lock™ Reclosable Fastener SJ3540 |
| Color | Black |
| Stem Density | Type 250 (250 stems per square inch) |
| Adhesive Type | High-Performance Rubber-Based Adhesive |
| Liner Type | Clear Polyolefin Film Liner |
| Closure Life | Up to 1,000 opens and closes |
| Ideal Application Temp | 20°C to 30°C (68°F to 86°F) |
| Maximum Operating Temp | 49°C (120°F) continuous |
| Indoor/Outdoor | Best suited for Indoor Use |
Common Applications
The versatility and cost-efficiency of 3M SJ3540 make it popular across multiple industries:
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Signage & Display Graphics: Ideal for attaching interior signs, point-of-purchase (POP) displays, and trade show banners without visible screws.
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Electronics & Equipment: Securing access panels, control boxes, control panels, and internal electronic components that require frequent maintenance.
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Automotive & Transportation: Fastening interior trim, headliners, and dashboard accessories safely.
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General Industrial: Temporary or permanent mounting of lightweight items on plastic, metal, or painted surfaces.
Explore the Full 3M Dual Lock Series
Looking for different adhesive backings or higher temperature resistance? Beyond the SJ3540, we offer the complete 3M Dual Lock family at industry-leading wholesale prices to suit any environment:
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3M SJ3550 Series: Acrylic adhesive backing, perfect for higher temperatures and outdoor applications (UV & moisture resistant).
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3M SJ3560 Series: Clear/Translucent option with clear acrylic adhesive for aesthetic-critical applications.
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Different Stem Densities: Available in Type 170, Type 250, and Type 400 to achieve your ideal mating strength.
Get a Factory-Direct Quote Today!
Save more on your sourcing costs. Whether you need standard rolls, custom die-cut shapes, or advice on the right 3M Dual Lock series for your project, our team is here to help.