

🔗 Lock it down, snap it up — the fastener that means business!
3M Dual Lock SJ3550 is a premium black reclosable fastener featuring approximately 250 mushroom-shaped stems per square inch, delivering triple the holding power of standard Velcro. Its adhesive backing bonds securely to metal, plastic, and flexible surfaces, while resisting heat up to 200°F, solvents, moisture, and plasticizers. Ideal for professional-grade applications like pedalboards, it offers quick, reliable open-close functionality with a sleek, durable finish.
| ASIN | B07STXS463 |
| Best Sellers Rank | #27,162 in Office Products ( See Top 100 in Office Products ) #64 in Hook & Loop Strips #192 in Mounting Tape |
| Brand | 3M |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,146) |
| Date First Available | April 15, 2019 |
| Global Trade Identification Number | 68935490532400 |
| Item Weight | 1.76 ounces |
| Item model number | TB3550-4FT~ |
| Manufacturer | 3 M |
| Manufacturer Part Number | TB3550-4FT~ |
| Material | Polypropylene (PP) |
| Material Type | Polypropylene (PP) |
| Mounting Type | Adhesive |
| Package Dimensions | 5 x 3.07 x 1.06 inches |
| Recommended Uses For Product | Pedal board attachment |
| Size | 1" x 4ft |
| Style | Modern |
| UPC | 689354905324 |
S**S
Dependable and effective
I have used Dual-Lock for years, and I know it will do what it's designed to do very well. It provides very firm retention, while still letting you separate the bond if you need to. This is much more expensive than Velcro, but it's worth every cent! I have used it to mount microphones on classroom desks, and electrical equipment inside lecterns. I've never had anyone pry a mic loose accidentally with this stuff. When you need something with 3x the hold of industrial Velcro, this is the stuff to go to! Once you place it with Dual Lock, it's not coming lose unless you pry it loose. One caution: remember that this stuff mounts with adhesive, and over time the adhesive can come loose in warm environments. Mounted on a horizontal surface, it will never fail to hold. Mounted on a vertical surface, the Dual Lock will not come lose, but over time the adhesive may get soft and release. Plan accordingly.
B**N
Tough stuff
I'm not sure what everyone is on about in terms of the adhesive not being sticky? Maybe they didn't prep the surfaces properly? My experience has been that the adhesive makes the Dual Lock almost permanent, and I wish they sold the adhesive backing as a roll of double-sided tape. The mushroom-style closure of this "Velcro" is exceptionally strong, so take this into account when purchasing.
B**O
It works!
Better than Velcro. Easy to use. Good value for the price. Works very well! Doesn't come off easily.
A**R
Pedalboard glue
The best "velco" of all.
M**9
Mostly Positive
Dual Lock holds extremely well, as the faces of the tape actually lock together, compared to the hook-and-loop products which have a fuzzy fabric on one side that doesn't hold as strongly and that wears out over time. Mine came in two segments, one of which was just 4" long. That means less adhesive length, so the 4" piece would have greater probability of the adhesive separating from whatever it's connected to. I guess that's 3M's way of not wasting short ends during packaging. NOTE: It's important to know that the grip design is identical for both surfaces you're connecting. So this four foot piece will give you only two feet of connection. The product photo accurately shows this--I should have looked more closely and spared myself some disappointment.
P**Y
Perfect for Guitar Pedals
As always, 10/10. Great tack and holds everything steady when needed. I use it for all my pedals, Tablet and the keep the power supply in place.
J**R
It works for pedalboards
Worked great to hold my pedals on my board and keep them from falling off. The velcro that came with the board didn't hold well at all, so I asked a friend what he was using. He recommended a product that was too pricey, so I decided to go with these instead. They work great! Just be sure to clean your board with alcohol first, then put it down. They will stick like crazy!
C**W
ITS STRONG!
This is some strong holding stuff. The only way this is coming off is if someone rips it off. I bet I could hold my body weight with enough of this
R**T
Excellent
C**N
Ottimo prodotto, meglio del velcro tradizionale. Nel caso di ripensamenti si può togliere abbastanza facilmente senza lasciare traccia nelle superfici verniciate.
A**E
A versão que possui uma fita dupla face transparente no lugar dessa borracha branca é mais indicado quando você precisa trocar o objeto fixado de lugar. Porque a borracha da base deixa resíduo extremamente difícil, pra não dizer impossível de retirar totalmente, quando você precisa trocar de lugar.
I**N
Immensely strong and sturdy product. Locks onto itself with immense strength and was able to support a heavy set of headphones.
P**D
tres bon produit
Trustpilot
2 weeks ago
1 month ago