3M 7100136223 Dual Lock Reclosable Fastener SJ3441 Black

Product Description

The 3M 7100136223 is a plain-backed, no-adhesive reclosable fastener sold as a bulk roll measuring 2 inches wide by 50 yards long. The SJ3441 features a black finish and delivers 400 mushroom-shaped stems per square inch. When two mating surfaces are pressed together, the interlocking stems generate high tensile strength, making this fastener a viable alternative to screws, bolts, and other mechanical fasteners. It is designed for repeated open-and-close cycles without adhesive bonding to substrates. The engaged thickness is 0.16 inches. HVAC technicians, electricians, equipment installers, and industrial maintenance professionals use this product to secure panels, wire harnesses, signs, and modular components in demanding environments.

The SJ3441 reclosable fastener is suited for a wide range of commercial and industrial applications. It has seen extensive use in transportation, electronics, business equipment, machinery, medical equipment, and sign and display installations. In trade settings, it is commonly used to secure access panels, bundle cable runs, mount displays or nameplates, and attach lightweight components where tool-free removal and re-engagement are required. The roll format makes it practical for job sites where multiple pieces need to be cut to length on demand.

Key Features

• 400 stems per square inch for high-cycle interlocking tensile strength
• Plain-backed with no adhesive — does not bond permanently to surfaces
• Engaged thickness of 0.16 inches for low-profile installations
• Black finish suitable for visible or concealed applications
• Bulk roll format: 2 inches wide x 50 yards for flexible cut-to-length use
• Replaces mechanical fasteners in vibration-prone or frequently serviced assemblies

Compatibility

Designed for use in transportation, electronics, business equipment, machinery, medical, and sign and display applications where a reclosable, no-adhesive mechanical fastener is required.

Installation Notes

Cut to the required length using scissors or a utility knife on a stable surface. Align mating fastener surfaces squarely before pressing together to ensure full stem engagement across the contact area. No power tools are required for installation or removal. Ensure mounting surfaces are clean and dry before placing any adjacent adhesive-backed components alongside this product.

Technical Specifications

• Stem Density: 400 stems per square inch
• Engaged Thickness: 0.16 inches
• Width: 2 inches
• Length: 50 yards
• Color: Black
• Backing Type: Plain, no adhesive
• Unit of Measure: Roll
• Weight: 6.25 pounds
• UPC: 00021200863684

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100136223