3M™ Dual Lock™ Reclosable Fastener

Product Description

3M™ Dual Lock™ Reclosable Fastener SJ3540 offers a simple and efficient alternative to traditional mechanical fasteners like screws, bolts, and nuts. This durable and reusable fastening solution can be opened and closed multiple times, bonding securely to a wide range of materials, including various plastics and low surface energy substrates. Featuring a high-strength design with interlocking mushroom-shaped stems (250 per square inch), it delivers up to five times the tensile strength of conventional hook-and-loop systems. Built with synthetic rubber-based black PE foam tape and protected by a removable film liner, the fastener’s pressure-sensitive adhesive allows for quick application with a minimal wait time. With 3M™ Dual Lock™ Reclosable Fastener SJ3540, there’s no need for drilling, screwing, or sewing, making installation fast and straightforward.

Simplicity and Strength Combined

This fastener provides exceptional strength through its interlocking stems, giving it five times the tensile strength of hook-and-loop alternatives. It includes a black PE foam tape with a synthetic rubber adhesive that bonds quickly. With no additional tools required, it allows for a simple, efficient installation process.

Versatile Applications

Recommended for:

• Access panels
• Indoor signage
• Decorative trims
• Office dividers
• Product labels

Designed for Flexibility

The interlocking mushroom-shaped heads allow for easy positioning before snapping together, ensuring a secure attachment. The fastener’s design flexibility also enables it to mate with different stem densities, providing various strength levels to meet the needs of your project. The fasteners produce an audible “snap” when securely fastened, ensuring a reliable connection. To disengage, simply peel the fastener apart by hand. This lightweight alternative to metal fasteners remains concealed under surfaces, offering aesthetic benefits without compromising material integrity.

Reliable Reattachment in Seconds

When two pieces of 3M™ Dual Lock™ Reclosable Fasteners are connected, the stems flex and the mushroom heads slide into place, interlocking with a strong bond. Despite its high tensile strength, it can be easily opened by peeling or cleaving the parts apart. Ideal for indoor applications, this fastener delivers consistent performance where a strong, reusable closure is needed.

Durable and Easy to Use

When your design calls for a strong yet removable fastening solution, 3M™ Dual Lock™ Reclosable Fasteners provide a versatile and easy alternative to traditional fastening methods like screws and bolts, offering long-lasting reliability without compromising design flexibility.

Features

• The black interlocking mushroom-shaped stems (with 250 per square inch) offer a strong, reliable, and durable fastening system that can be opened and reclosed multiple times.
• Compatible with Type 170, Type 250, or Type 400 stem densities, allowing for different strength combinations based on your needs.
• The synthetic rubber adhesive bonds effectively to a variety of surfaces, including low-energy plastics like polyethylene and polypropylene.
• Provides a secure hold with an audible “snap” to confirm closure.
• A discreet alternative to screws and bolts, offering a tight fit and a smooth, clean appearance.
• Offers good temperature resistance up to 120°F (49°C).
• Ideal for indoor applications.

Specifications