3M 3550 Dual Lock Hook and Loop Fastener - 1 in. wide - Per Foot
3M

3M 3550 Dual Lock Hook and Loop Fastener - 1 in. wide - Per Foot

  • Product SKU: SJ3550

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Text us (415) 457-7600
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Available: In Stock

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Free pickup at our San Rafael store

$6.95

Reliably Strong, Over and Over Again

When you need a strong, reliable attachment that also opens and recloses, look no further than 3M™ Dual Lock™ Reclosable Fasteners. Strong, interlocking mushroom-shaped heads slide past each other to close with a snap, then peel apart easily when you need to reopen. 3M™ Dual Lock™ Reclosable Fastener strips make excellent quick-release access panel fasteners and die-cut pieces can also be used to attach accessories to a dashboard or windshield. The quick-release fastening can also be used for interior panels that require maintenance or changeable signage and display units.

FEATURES

  • Interlocking mushroom-shaped heads have five times the tensile strength of hook and loop products
  • Durable — open and close up to 1,000 times before losing 50% of original tensile strength
  • Temperature, moisture and UV resistant
  • Pressure-sensitive adhesive easily forms a powerful bond
  • Easy to apply and maintain, easy to clean out dust or debris
  • Helps reduce vibration
  • A variety of pressure-sensitive adhesives are available to form a powerful bond with many materials
  • Low profile option is approximately half the thickness of standard 3M™ Dual Lock Reclosable Fastener
  • Mates with Type 170, Type 250 or Type 400 stem densities to provide different strength combinations
  • Clear, acrylic, tape bonds well to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS
  • Strong fastener secures with an audible snap, verifying closure
  • An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance
  • Features good temperature resistance of 220°F (104°C)
  • Best suited for indoor and outdoor use

3M™ Dual Lock™ Reclosable Fastener SJ3550 is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution which bonds to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS. This fastener gives the adhesive a black appearance.

Unlock Simplicity

Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3550 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 clear, acrylic, tape protected by a removable, film liner. This solid, pressure sensitive tape features a strong, durable bond that is heat, chemical and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3550, there is no need for any drilling, screwing or sewing tools which makes for quick installation.

Design Flexibility

3M™ Dual Lock™ Reclosable Fastener SJ3550 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™ Dual Lock™ Reclosable Fasteners sound an audible snap when secure, which verifies closure of the attachment. To disengage, simply peel the pieces apart by hand. Our fasteners maintain their strength throughout multiple attachments and detachments. A lightweight alternative to metal fasteners, this product remains hidden beneath surfaces and does not interfere with the integrity of your material—providing aesthetic improvements and design flexibility.

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.

Reliably Strong, Over and Over Again

When you need a strong, reliable attachment that also opens and recloses, look no further than 3M™ Dual Lock™ Reclosable Fasteners. Strong, interlocking mushroom-shaped heads slide past each other to close with a snap, then peel apart easily when you need to reopen. 3M™ Dual Lock™ Reclosable Fastener strips make excellent quick-release access panel fasteners and die-cut pieces can also be used to attach accessories to a dashboard or windshield. The quick-release fastening can also be used for interior panels that require maintenance or changeable signage and display units.

FEATURES

  • Interlocking mushroom-shaped heads have five times the tensile strength of hook and loop products
  • Durable — open and close up to 1,000 times before losing 50% of original tensile strength
  • Temperature, moisture and UV resistant
  • Pressure-sensitive adhesive easily forms a powerful bond
  • Easy to apply and maintain, easy to clean out dust or debris
  • Helps reduce vibration
  • A variety of pressure-sensitive adhesives are available to form a powerful bond with many materials
  • Low profile option is approximately half the thickness of standard 3M™ Dual Lock Reclosable Fastener
  • Mates with Type 170, Type 250 or Type 400 stem densities to provide different strength combinations
  • Clear, acrylic, tape bonds well to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS
  • Strong fastener secures with an audible snap, verifying closure
  • An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance
  • Features good temperature resistance of 220°F (104°C)
  • Best suited for indoor and outdoor use

3M™ Dual Lock™ Reclosable Fastener SJ3550 is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution which bonds to a variety of substrates including metals, glass and plastics such as acrylics, polycarbonate and ABS. This fastener gives the adhesive a black appearance.

Unlock Simplicity

Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3550 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 clear, acrylic, tape protected by a removable, film liner. This solid, pressure sensitive tape features a strong, durable bond that is heat, chemical and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3550, there is no need for any drilling, screwing or sewing tools which makes for quick installation.

Design Flexibility

3M™ Dual Lock™ Reclosable Fastener SJ3550 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™ Dual Lock™ Reclosable Fasteners sound an audible snap when secure, which verifies closure of the attachment. To disengage, simply peel the pieces apart by hand. Our fasteners maintain their strength throughout multiple attachments and detachments. A lightweight alternative to metal fasteners, this product remains hidden beneath surfaces and does not interfere with the integrity of your material—providing aesthetic improvements and design flexibility.

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.

Returns

  • Any New item (other than as noted below) purchased from Bananas at Large may be returned within 14 days of the invoice date, for a full refund, exchange or credit.
  • All Pre-Owned products may be returned in 48 hours.
  • All Clearance, “additional mark down”, additionally discounted, “blow out”, “door buster” or otherwise identified as on sale may be returned within 7 days unless otherwise specified.

For online orders, the above return policy begins on the day the items were delivered. We must receive an active tracking number within the specified time.

Bananas must be notified within 24 hours of receiving delivery of any issues that pertain to damage during shipping, missing product or incorrect product.

See our full Return Policy for all of the pertinent details.

Shipping

We understand that when you make an order, you want your gear as quickly as possible and we'll do our best to make that happen! Most of the items we sell will ship quickly and be at your door fast. In most cases, orders ship within 1-3 business days. Shipping and delivery dates are not guaranteed unless otherwise specified. 

Most orders $100 and over qualify for FREE shipping within the Continental United States. Some exclusions may apply.

See our full Shipping Policy for further details.

Buy online, pick up in store

Order online and pick up at any store location FREE of charge. Avoid online shipping charges and shipping time, and in most cases get your order faster. Enjoy the in store pickup convenience and security of knowing that your can easily return the product if it does not suit your needs within our return policy.

I'm interested! What do I need to do?

  1. Place your order on bananas.com and choose In-Store Pickup for your preferred location at checkout.
  2. We'll contact you by email or phone when it's ready for pick up. Need it sooner? Just give us a call and we'll do our best to arrange that: 888-900-1959
  3. Bring a copy of your valid government-issued ID such as a Driver's License and a digital or print copy of the order confirmation to your local store.
  4. You have (2 options): Curbside Contactless Pickup or Pick up in Store.
    1. Curbside Contactless Pickup: When you arrive at the store location, call us and we will bring your order out to verify your ID, place in your vehicle and you're ready to go!
    2. Pick up In Store: Come into the store, show your ID, and pick up your order.

How does it work?

After you place your order online, the selected store receives your order. Then the merchandise is selected from the store's current inventory and prepared for pick up. If the items are located at another store, there may be a longer wait time as we need to transfer it to the pickup location of your choice. This is all part of our free service. We'll contact you when it's ready and notify you if anything changes. Once your order is ready, you can choose to come into the store to pick up your order OR call us when you arrive and we will provide Contactless Curbside Pickup at your vehicle.

Most orders are ready within 24 hours; however, please allow for extra processing time depending on the item, size of order, and store location. If you need to pick up your order sooner, please give us a call at either location.

See our full Shipping Policy for further details.

Local delivery to your doorstep

Bananas is here to help you support your local economy, shop local, get your musical dreams faster.

FAST: Get Same Day Delivery starting at $35*.

Making your online shopping a little easier. We offer an easy “Order Online, Deliver to your Doorstep”.

This service is currently available for these towns within California: San Rafael, San Anselmo, Fairfax, Larkspur, Greenbrae, Corte Madera, Novato, Sausalito, Belvedere/Tiburon, Ross, Kentfield, and Mill Valley. Shipping rates are shown at checkout. Got questions?... Contact us!

*Get same day delivery for in-stock orders received and processed by 2pm, otherwise will deliver the following business day. Delivery fee is based on weight, delivery location and courier fees. Any amounts over $35 - You will be notified to approve before delivery. This is a convenience option only. Deliveries are by a 3rd party delivery service and will deliver to doorstep only. By accepting this delivery process you hereby indemnify Bananas At Large Inc of all responsibility as Bananas At Large is not the delivery agent and assumes no liability on lost or stolen products.

By choosing this option you understand and agree to the following terms:

  • Some restrictions apply. For in-stock & available items only.
  • You are requesting Bananas at Large to contract on your behalf with a 3rd party service.
  • Bananas At Large guarantees the product to be delivered to your doorstep, with photo proof of delivery.
  • Bananas cannot and is not responsible for the package safety or security once it is delivered to your doorstep.
  • You understand and accept the risk and responsibility of your package once it is delivered.
  • Large items, overweight items may incur additional charges.
  • Certain delivery zones and homes with access issues may incur additional charges or may not qualify for delivery.
  • If the last inventory unit is located at our Santa Rosa store location, there may be a delivery delay that may take an additional business day to have it transferred down to our San Rafael

FREE: Free Local Delivery in 1-3 Days.

Free 1-3 day local delivery available for orders over $199*. Contact us for details.

If you aren’t in a rush to receive your items and want free delivery, choose the Free Local Delivery option at checkout. Your order will be processed and delivered within 2-3 business days. 

*Applies to full price items only. Can't be combined with any other deals or promotions including Bananas Rewards.

This service is currently available for these towns within California: San Rafael, San Anselmo, Fairfax, Larkspur, Greenbrae, Corte Madera, Novato, Sausalito, Belvedere/Tiburon, Ross, Kentfield, and Mill Valley. Shipping rates are shown at checkout. Got questions?... Contact us!

By choosing this option you understand and agree to the following terms:

  • Some restrictions apply. For in-stock & available items only.
  • You are requesting Bananas at Large to contract on your behalf with a 3rd party service.
  • Bananas At Large guarantees the product to be delivered to your doorstep, with photo proof of delivery.
  • Bananas cannot and is not responsible for the package safety or security once it is delivered to your doorstep.
  • You understand and accept the risk and responsibility of your package once it is delivered.
  • Large items, overweight items may incur additional charges.
  • Certain delivery zones and homes with access issues may incur additional charges or may not qualify for delivery.
  • If the last inventory unit is located at our Santa Rosa store location, there may be a delivery delay that may take an additional business day to have it transferred down to our San Rafael

See our full Shipping Policy for further details.

    Local pickup only

    Some products are available for local pickup only. If you’d like this item shipped, please call us at 1 (888) 900-1959 or text us at (415) 457-7600 to discuss shipping options. 

    Shipping items with tubes

    Bananas does not warranty tubes in transit. We offer tube removal and individual bubble wrap service for $45 per customer request (for standard amps, more complex amps that take more time may be a higher fee). Customers buying any tube product and having it shipped should understand and realize that Bananas cannot be responsible for damaged tubes from transit. This applies to all new and used products. Certain manufactures offer a tube warranty on their new products as a courtesy, and that is available thru the manufacturer warranty process for all new products where it applies.

    Play now... Pay later!

    Make music more affordable with these easy payment plans. It only takes a few minutes to apply or just choose the payment option at checkout.

    Bananas at Large offers these online and in-store financing options: Affirm, PayTomorrow, ZIP, Acima Credit, Synchrony and more! 

    Click here for details.

    Bananas Product & Shipping Protection

    Enjoy Peace of Mind 

    Hassle-free product & shipping protection for the stuff you love. 

    Bananas.comExtend Warranty

    Extend™ coverage & benefits 

    • Accidental damage protection: You’re covered for a repair or replacement in case of accidental damage, as well as extended product protection after the manufacturer warranty expires. 
    • Extended product protection: Play without worry. You’re covered when regular use of your product over time results in mechanical or electrical failure. 
    • Worry-free shipping protection: Cover your package against loss, damage, and theft, so if your delivery doesn’t arrive safely, Extend will handle it. 
    • Convenient support: With Extend, you’ll never have a deductible or fees. Simply file a claim with your email address or Extend contract ID (most claims are resolved in minutes). Extend is always happy to help and has online support 24/7. 

    Hear it from our happy customers

    “The plan is definitely worth the price and great customer service!” - Colleen K. 

    “The replacement process was automated and even easier than I could have imagined. I am glad I purchased the extra protection.” - Michael S. 

    “I am beyond happy with my experience with Extend. I can't believe how easy it was for me to get a replacement. Truly amazing!” - Christopher K. 

    Limitations and exclusions apply. Read Extend’s product protection terms and conditions and Extend’s Shoppers Guide to Shipping Protection for more information. 

    Our manufacturer’s warranty 

    Every new product you purchase with Bananas comes with its full manufactures warranty coverage. 

    Why add Extend? 

    Extend provides affordable product and shipping protection with a modern, easy-to understand process. Add an Extend plan and shipping protection to your purchase during checkout.

    Extend Product Protection provides coverage for your product after the manufacturer’s warranty expires. 

    Extend Shipping Protection protects your package en route; whether it’s a mixup on the truck, a mishandling from a shipping carrier, or it's stolen while you’re at work, you’re covered. 

    Easy claims, great service 

    Filing a claim with Extend is simple. Contact Extend online or by phone at (877) 248-7707. They’ll process your claim in minutes and once approved, send you details on your repair or replacement depending on the claim. 

    Start a claim

    What if I need to return my product? 

    If you return your product, Bananas returns the money you paid for the product protection plan. Depending on how much time has passed since your purchase, Extend may issue a prorated refund. 

    Shipping protection is non-refundable. 

    Am I able to cancel my Extend protection plan? 

    Yes. If you decide you do not want to continue with the Extend Product Protection plan, you can cancel for a full refund within the original manufacturer's warranty period. Product protection plans can also be canceled after the Extend protection plan has started. Depending on how much time has passed since your purchase, Extend may issue a prorated refund. 

    Shipping protection is non-refundable.

     

    Warning: Some of the products purchased at Bananas At Large can expose you to chemicals, which are known to the State of California to cause cancer and/or reproductive harm. For more information go to http://www.P65Warnings.ca.gov.