Unlock Simplicity
Durable and secure, 3M™ Dual Lock™ Reclosable Fastener TB3540 has exceptional strength through its interlocking mushroom-shaped heads (250 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products. We designed this fastener with a synthetic, rubber-based, black PE foam tape protected by a removable, film liner. This pressure sensitive adhesive features quick stick and a short dwell time. With 3M™ Dual Lock™ Reclosable Fastener TB3540, there is no need for any drilling, screwing or sewing tools which makes for quick installation.
Recommended Applications:
- Access panels
- Graphic attachment
- Specialty vehicles (interior attachments)
- General industrial attachment
- Small components
Design Flexibility
3M™ Dual Lock™ Reclosable Fastener TB3540 consists of interlocking mushroom-shaped heads that easily slide over each other, allowing for positioning of parts before being snapped together. This fastening process creates a durable attachment and provides fast product assembly with great design flexibility. Our reclosable fasteners can also engage with different stem densities for varying levels of strength and system performance.
3M Trial Bags Simplify Selection
3M™ Dual Lock™ Reclosable Fastener Trial Bags provide a simplified “go-to” selection that has proven successful for most common applications, along with just the right length (1 in. x 10 ft.) and quantity for trial run testing.
Hundreds of Reattachments in a Snap
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners mate, the stems flex and the mushroom heads slide past each other. After passing the opposing mating piece, the stems snap back into their original position and the opposing mushroom heads interlock. These fasteners can provide high tensile strength but can be opened by simply cleaving or peeling open the closure. This product is well suited for many indoor and outdoor applications where a high strength and versatile reclosable fastening system is required.
Delivers Long-Lasting Performance
Not all design requirements are easily satisfied, but you can simplify your attachments. When you need a strong, reliable, yet removable closure, 3M™ Dual Lock™ Reclosable Fasteners are the easy alternative to traditional fastening methods such as screws, nuts or bolts.

Standard Abrasives 260013, Cross Buff Kit 260013, 7000121667
Dynabrade 06095 "O" Ring
Dynabrade 57127 3" (76 mm) Dia. Right Angle Depressed Center Wheel Grinder, Steel Housing, .55 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 56829 6" Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander, 3/16" Orbit
Dynabrade 11518 Rubber Drive Wheel
Dynabrade 78591 3/8" Dia. x 1" W x 1/8" Center Hole, 80 Grit, 100/pack
Dynabrade 91542 5" Dynacut Extreme Orange Premium Film Disc, 320 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 79822 3" P1500 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
Dynabrade 78782 DynaCut Wire Cup Brush 3" Dia. x .014 5/8-11 UNC AH Steel
Dynabrade 78046 1/4" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 58045 Vacuum Dynafine Tear-Drop Disc Pad, Vinyl-Face
Dynabrade 58514 2-3/4" W x 7-3/4" L Dynabug II Orbital Sander, Non-Vacuum, .11 hp, 8,000 RPM, 3/16" Orbit
Dynabrade 54359 .7 hp Right Angle Die Grinder, Rear Exhaust, 18,000 RPM, 1/4" Collet
Standard Abrasives 704406, A/O Straight Cartridge Roll, 1/4 in x 1-1/2 in x 1/8 in 60, 7100080008
Dynabrade 58442 6" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, Non-Vacuum, .45 HP, 900 RPM, PSA
Dynabrade 15316 Steel Drive Wheel
Dynabrade 91709 DynaMesh 3" 400 Grit Hook & Loop Discs, 50 per box
Dynabrade 93341 Carbide Burr, 1/8" Dia., SC-42 D/C Burr, Cylinder-Radiused End, 9/16" Flute L, 1/8" Shank
Dynabrade 78412 3" Dia. x 1" W x 1/4" Shank, 120 Grit, A/O DynaCut Flap Wheel
Dynabrade X61 6" (152 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, PSA
Dynabrade 78751 1" x 1"-A38 DynaFire A/O Mounted Point, Vitrified, 5/pack 