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3M Dual Lock Reclosable Fastener TB3550 250/250 Black, 1 in x 10 ft (1 Mated Strip/Bag)

4.7 out of 5 stars 107 customer reviews
| 29 answered questions

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  • Five times stronger in tensile than typical hook-and-loop fasteners
  • Durable enough to be opened and closed 1,000 times before losing 50% of its original strength
  • Mushroom-shaped stems snap in place to ensure fastener is engaged
  • General purpose acrylic adhesive bonds to metals, glass and medium to high surface energy plastics
  • Trial bags offer a simplified "go-to" selection of stem density pairings
  • Easy peel-apart for quick access
  • Durable enough to be opened and closed 1,000 while maintaining 50% of its original strength
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Specifications for this item
Part Number 051111976296
Brand Name 3M Dual Lock
Color Black
UPC 051111976296
EAN 0051111976296
Manufacturer Series Number 51111976296
Maximum Temperature 200  Degrees Fahrenheit
Number of Items 1
Overall Length 10  feet
Overall Width 1  inches
Thickness 0.23  inches
UNSPSC Code 11162114


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Frequently Bought Together

  • 3M Dual Lock Reclosable Fastener TB3550 250/250 Black, 1 in x 10 ft (1 Mated Strip/Bag)
  • +
  • 3M Dual Lock Reclosable Fastener TB4575 Low Profile Black, 1 in x 10 ft (1 Mated Strip/Bag)
  • +
  • VELCRO Brand - Industrial Strength - 2" x 15' - Black
Total price: $75.60
Buy the selected items together


Product Description

Product Description

3M Dual Lock TB3550 black hook & loop tape comes in a 1 in width, uses an acrylic adhesive and is packaged 1 mated strip per inner, 8 bags per case. Can be used to a maximum temperature of +200 degF. These products are generally considered "hook & loop" products. While the traditional system is that of a hook and a loop some of these products also use an interlocking mushroom like head. This particular 3M item is the mushroom hook side with a density of 250 stems/in2. This is an adhesive based hook & loop tape.

From the Manufacturer

Strength in Numbers
One little mushroom won't accomplish much in this world, but pair him up with a few hundred of his friends and he becomes nearly unstoppable. Teamwork, that's the idea behind the design on the 3M Dual Lock Reclosable Fastener TB3550. When joined together, these unique, mushroom-shaped stems combine to interlock with one another, generating five times the closure strength of typical hook and loop fasteners while maintaining the ability to easily peel-apart for quick access.

3M Dual Lock TB3550 Reclosable Fastener contains approximately 250 mushroom-shaped head stems per square inch. When two pieces of Dual Lock are pressed together the stems flex and the mushroom heads slide past each other. After mating, the stem snaps back into its original position, interlocking with the opposing heads with an audible snap that signals the fastener is engaged. This system can be opened and closed 1,000 times while maintaining 50% of the original tensile strength.

No Drilling, Screwing, Tightening, or Complex Installation
3M Dual Lock TB3550 uses an acrylic adhesive that bonds well to a variety of high medium surface energy materials, including some plastics, metal, glass and painted surfaces. This ensures a quick and easy installation without the use of mechanical attachment processes. The adhesive sticks quickly and reaches full strength after 72 hours. Once bonded the interlocked, mushroom-shaped stems provide an attachment that holds as well as screws or rivets, yet separates easily for access.

Versatile, Durable and Invisible
There's no limit to the number of uses for 3M Dual Lock fasteners. The stems, mushroom tops, and film backing are constructed of clear polypropylene, and the polyolefin backing resist common solvents and alkaline solutions, making them ideal for a variety of purposes and environments. The fastener is recommended for use at temperatures ranging from -20°F/-29°C to 200°F/93”C. Hidden from view when attached, these fasteners provide a clean, unbroken surface, and stay strong through more than 1,000 open-close cycles.

Dual Lock Reclosable Fasteners are used extensively in transportation, electronics, business equipment, machinery, medical, and sign and display markets. They are ideal for both indoor and outdoor applications including: attaching signs, cushions, enclosure and access panels, banners, doors, adjustable shelving, vehicle ceiling panels, furniture seats and backs, and much more.


Product Details

  • Product Dimensions: 14 x 14 x 5 inches
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B007OXK1AK
  • Item model number: 051111976296
  • Average Customer Review: 4.7 out of 5 stars 107 customer reviews
  • Amazon Best Sellers Rank: #233 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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From the Manufacturer


Important Information

Legal Disclaimer
3M packages and labels its industrial/commercial products for purchase and use by industrial, professional, and commercial customers. Unless specifically stated on the product package or applicable product literature, 3M industrial products are not packaged, labeled, or intended for sale to individual consumers (ie., the general public).

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
If you have ever attempted to use Velcro to mount something, you will be pleasantly surprised when you try mounting anything with this dual lock tape. This stuff is incredible. It's a little tough to find in stores, and even if you do this price here on amazon cannot be beat. I use this tape to mount my GoPro on walls, a skateboard and the acrylic backboard of a basketball court. It's quick, easy and always reliable. The surface of what you stick it to can sometimes not stick to well. For example my closet doors don't hold the tape well since the paint chips off too easily. So just make sure you know the amount of pressure wherever you stick it can withhold. Awesome product overall.
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Verified Purchase
Velcro has met its match and here it is. Water proof, weather proof, unbelievably strong adhesive and super strong locking surfaces dual lock raises the bar for removable fasteners. 3M is the best, there is noting even close.

If you don't know what dual lock is think of the strips they give you with your ez-pass for mounting on the window.

The adhesive is great but here are a few tips.
Clean the surfaces thoroughly. I suggest some rubbing alcohol clean both surfaces and let it dry. This is common sense but many people forget to do this.
Make sure the surfaces are flat. if its textured you can use a little sandpaper. be sure its not a visible area.
Use a lighter and heat up the adhesive just slightly. Do not scorch the the adhesive, just a few quick passes makes it slightly more pliable and much more sticky. This is especially important if it is near freezing.
On a surface where you are having particular difficulty getting any type of adhesive to adhere, a small dot of crazy glue in the center will do the trick. Just make sure its on a surface you wouldn't mind leaving a mark if you had to pull it off.
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Verified Purchase
Works well, but use with caution. Great stuff for the right applications. This material gives a very strong closure. You can feel and hear it snap together as you apply pressure to close it. It seems to me that using too much of it, that is, pieces that are too long and therefore too sticky, could result in a closure that could not be opened without pulling off the adhesive, possibly causing damage to the underlying surfaces,rather than opening the fastener. I used it to remount some sections of the headliner in my boat. Seems to stand up well to difficult environmental conditions well. It had been used in the original installation of the headliner, but the adhesive had failed in some places after many years of hanging overhead in damp conditions and a lot of motion. I followed the practice of the original installer, cutting it into small pieces, about 1" square. Have used it for a few other hanging and closure jobs as well. Again, be sure that the underlying surfaces are sound enough to withstand the strong pull required to open the fastener once in place. The surface and the 'hooks and loops. do not deteriorate quickly as Velcro does and the closure is very tight.
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Verified Purchase
At the time of this writing, I paid $21.40 for what I thought was 10 feet of product.

I thought that $2.14 a foot was a bit high, but with Amazon Prime it was doable.

What you actually receive is 20 feet. The package contains two 10 foot rolls. That makes the price per foot $1.07 which is an excellent price.

Notice the picture does show two rolls. Each of those rolls is 10 feet, not 5 feet like you might expect, given the description.
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Verified Purchase
Forget any other "hook & loop" fastener out there. I use this to mount electronics (GPS, cell phone, etc) on my motorcycles and NOTHING has EVER vibrated loose or (gawd forbid) off of any of my bikes. The adhessive and hooks just bite on and stay.
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Verified Purchase
My first experience with this product was with my guitar pedal board. My Gator board shipped with a small roll of it. I'd never used it before but I was incredibly impressed by the strength of the lock. Seriously, this is impressive stuff. It makes Velcro industrial strength look like total garbage. Yes, this stuff is very expensive but it works and is absolutely worth the premium.

No more hooks and loops anymore, this product mates with itself and doesn't have the destructive "tear" when separating. The pieces interlock and grip like nobody's business. Package says good for 1000 separations (that's a lot) and I believe it.

A couple of tips:
1. Although the backing adhesive is excellent, make sure you clean the mounting surfaces well with alcohol to remove any trace of grease. Remember this stuff is strong, so you need a good adhesive bond that will withstand the force of separation.
2. Try not to upset the roll when it arrives. Don't unravel it. I pull it out from the center. The reason is if the film that protects the mounting adhesive gets separated you may be compromising the sticking properties. That would make it wear out faster.
3. Plan carefully exactly how much you need. This stuff is expensive but works so well you may need less than you think! You can also cut it lengthwise for thinner strips. This has worked well for me.
4. Note: the adhesive is white which will stand out if placing on glass like a windshield.

5 stars. Another fabulous 3M invention!
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