--- product_id: 148791140 title: "Dual Lock Reclosable Fastener SJ3550 250 Black" brand: "3m" price: "20320CFA" currency: XOF in_stock: true reviews_count: 13 category: "3 M" url: https://www.desertcart.sn/products/148791140-dual-lock-reclosable-fastener-sj3550-250-black store_origin: SN region: Senegal --- # Heat resistant up to 200Β°F 250 stems/inΒ² for ultra-strong hold Adhesive bonds metal, plastic & flexible surfaces Dual Lock Reclosable Fastener SJ3550 250 Black **Brand:** 3m **Price:** 20320CFA **Availability:** βœ… In Stock ## Summary > πŸ”— Lock it down, snap it up β€” the fastener your pedalboard deserves! ## Quick Answers - **What is this?** Dual Lock Reclosable Fastener SJ3550 250 Black by 3m - **How much does it cost?** 20320CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/148791140-dual-lock-reclosable-fastener-sj3550-250-black) ## Best For - 3m enthusiasts ## Why This Product - Trusted 3m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Instant Reclosure:** Snap apart and lock back instantly for seamless access - β€’ **Unmatched Strength:** 3x the hold of industrial Velcro for rock-solid fastening - β€’ **Versatile Adhesion:** Sticks firmly to metal, plastic, and flexible surfaces without screws - β€’ **Durable & Resistant:** Engineered to resist solvents, moisture, plasticizers, and heat - β€’ **Sleek & Clean Finish:** Modern black design keeps your setup tidy and professional ## Overview 3M Dual Lock SJ3550 is a premium black reclosable fastener featuring approximately 250 mushroom-shaped stems per square inch, delivering superior strength and durability. Its adhesive backing bonds securely to metal, plastic, and flexible surfaces, resisting solvents, moisture, plasticizers, and heat up to 200Β°F. Ideal for pedalboards and professional setups, it offers instant open-close convenience and a sleek, clean finish that outperforms traditional Velcro. ## Description 3M Dual Lock Black Reclosable Fastener offers advanced closure alternatives to zippers, screws, snaps, hooks, bolts and more! It offers greater design flexibility, faster product assembly, smoother and cleaner exterior surfaces and improved product performance in many applications. The fastener consists of continuous polyolefin strips with polyolefin stems having a mushroom shaped top. The mushroom heads allow the fasteners to easily slide over each other allowing positioning of parts before they are snapped together creating a firm fastening attachment. Open and close instantly by simply pulling the interlocking strips apart. The adhesive attaches to metal, plastic, and most rigid or flexible surfaces. Resists solvents, moisture and plasticizers. Also resists heat up to 200 degrees. 1" wide x 4' long roll. Type 250 (approximately 250 stems per square inch). Serves as a great addition to any pedal board! It's stronger, cleaner and lasts longer than any velcro. Give your pedalboard the upgrade it deserves! Review: 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. Review: 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. ## Features - 3M Dual Lock Black Reclosable Fastener offers advanced closure alternatives to screws, snaps, hooks, bolts and more! Great for pedalboards! - Instantly open and close by pulling the interlocking strips apart. - Adhesive backing adheres to metal, plastic, and most rigid or flexible surfaces. - Resistant to solvents, moisture and plasticizers. Resists heat up to 200 degrees. - Roll size 1" wide x 4 feet long. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07STXS463 | | Best Sellers Rank | #37,043 in Office Products ( See Top 100 in Office Products ) #85 in Hook & Loop Strips #240 in Mounting Tape | | Brand | 3M | | Brand Name | 3M | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 1,166 Reviews | | Global Trade Identification Number | 68935490532400 | | Manufacturer | 3 M | | Manufacturer Part Number | TB3550-4FT~ | | Material | Polypropylene (PP) | | Material Type | Polypropylene (PP) | | Model Number | TB3550-4FT~ | | Mounting Type | Adhesive | | Recommended Uses For Product | Pedal board attachment | | Size | 1" x 4ft | | Style | Modern | | UPC | 689354905324 | ## Product Details - **Brand:** 3M - **Color:** Black - **Material:** Polypropylene (PP) - **Size:** 1" x 4ft - **Style:** Modern ## Images ![Dual Lock Reclosable Fastener SJ3550 250 Black - Image 1](https://m.media-amazon.com/images/I/61bsfwjam-L.jpg) ## Questions & Answers **Q: Does this work on clothing** A: We used it to secure Electric guitar pedals to a pedal board. I am sure you can use it on clothing but I am afraid it may be too thick and too rigid for that purpose. **Q: Does the adhesive stick to wood very well?** A: I purchased it to apply to our outside canopy. Didn't work too good. However, I've used it on wood and plastic and it's still holding. **Q: Can i use this to attach a strobe light to my dji mini three pro drone?** A: Hard to say. Depends on the weight of the strobe. I can say that this stuff has a lot more holding power than Velcro. **Q: No se adhiere a plΓ‘stico en interior carro** A: Dual Lock should adhere to the plastic interior of a car. Do keep in mind that it will likely leave a residue or discoloration when removed from the interior of a car so be cautious where you place it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Dependable and effective *by S***S on March 11, 2020* 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. ### ⭐⭐⭐⭐⭐ Tough stuff *by B***N on January 27, 2026* 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. ### ⭐⭐⭐⭐⭐ It works! *by B***O on August 3, 2025* Better than Velcro. Easy to use. Good value for the price. Works very well! Doesn't come off easily. ## Frequently Bought Together - 3M Dual Lock Reclosable Fastener SJ3550 250 Black - XHF 3/4" Strong Back-Glue Self Adhesive Black Cable Zip Tie Mounts 100pcs with 8" Zip Ties, Screws, UV Protection Outdoor Sticky Wire Fasteners Cable Clips Management Anchors Organizer Holders Squares - 3M Dual Lock SJ3550 1"Γ—6ft Black 2 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticky Tape for Indoor and Outdoor(DB251902) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/148791140-dual-lock-reclosable-fastener-sj3550-250-black](https://www.desertcart.sn/products/148791140-dual-lock-reclosable-fastener-sj3550-250-black) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-01*