3M™ Dual Lock™ Reclosable Fastener SJ3481, Black, 1 in x 48 in (piece), Type 400, 40 Each/Case

3M™ Dual Lock™ Reclosable Fastener SJ3481 is designed to deliver a durable, reclosable fastening solution, which can be opened and closed multiple times. This strip fastener can be attached by a variety of adhesives or with other methods.
Special Price $603.50 Regular Price $710.00
UPC 00638060401521
3M ID 7100195399
Packaging Case
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Unlock Simplicity

3M™ Dual Lock™ Reclosable Fastener SJ3481 has exceptional strength through its interlocking mushroom-shaped heads (400 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products. The strip fastener provides a snug fit and smooth aesthetic appearance.

Recommended Applications:

Alternative to pressure sensitive adhesives Attaches to difficult-to-adhere substrates

Interior panel attachment

Design Flexibility

3M™ Dual Lock™ Reclosable Fastener SJ3481 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. 3M 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. These 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 applications where a good performance, high strength, 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.


  • Black, interlocking mushroom-shaped heads (400 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times
  • Mates with Type 170 or Type 250 stem densities to provide different strength combinations
  • This 48-inch long strip features a rigid polyolefin backing that allows for attachment with a variety of adhesives or with other methods
  • Strong fastener secures with an audible snap, verifying closure
  • Hidden fastener provides a snug fit and smooth aesthetic appearance
  • Features good temperature resistance of 220°F (104°C)
  • Suited for indoor or outdoor use
More Information
3M ID 7100195399
Keywords 3M, Dual Lock, reclosable fastener, SJ3481, interlocking mushroom-shaped heads, 400 stem density, strong fastener, durable fastening, indoor use, outdoor use, adhesive attachment, polyolefin backing, audible snap, hidden fastener, aesthetic appearance, temperature resistance, 220°F, alternative to pressure-sensitive adhesives, difficult-to-adhere substrates, interior panel attachment, design flexibility, high tensile strength, reattachments, lightweight fastener, metal fastener alternative, automotive, commercial solutions, electronics, manufacturing, transportation, aerospace, bonding and assembly, building maintenance, DIY, design materials, government, graphics signage, industrial manufacturing, marine applications, metalworking, personal recreation vehicles, rail applications, woodworking.
Global Product Hierarchy Tapes > Reclosable Fasteners > Mushroom Hook Fasteners
Application Airbag Cover Attachment, Attaching Graphics, Fastening Headliner & Ceiling Systems, Interior Mirror & Fixture Attachment, Kiosk Assembly, Luxury Box Assembly, Mounting & Trim Attachment, Mounting Boat Accessories, Mounting Motorcycle Accessories, Mounting RV Accessories, Mounting Surveillance Cameras, Mounting Toll Transponders, Panel Attachment Systems, Point of Sales System Attachment, Power Strip Attachment, Reclosable Headliner Attachment, Sensor Attachment, Wall Panel Attachment
Backing (Carrier) Material Polyolefin
Backing Material Polyolefin
Color Family Black
Product Color Black
Product Number SJ3481
Product Type simple
Quantity 0
Trademark 1 3M™
Trademark 2 Dual Lock™
Country of Origin United States
SAP Shelf Life In Days 729
Base - Billing Unit EA
Base - Metric Gross Weight 109.112 G
Base - Metric Length Dimension 1.219 M
Base - Metric Width Dimension 0.025 M
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 18.17567808363963 ci
Unit of Use - Customary Gross Weight 0.24055078351516362 lbs
Unit of Use - Customary Net Weight 0.20299944639721343 lbs
Unit of Use - Metric Cubic Dimension 297.846 CCM
Unit of Use - Metric Net Weight 92.079 G
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit EACH
Unit of Use - Unit EA
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 727.0289540579081 ci
Shipper - Customary Gross Weight 9.621998271267218 lbs
Shipper - Customary Net Weight 8.119977855888537 lbs
Shipper - Customary Height Dimension 2.811811023622047 in
Shipper - Customary Length Dimension 49.25 in
Shipper - Customary Width Dimension 5.25 in
Shipper - Metric Cubic Dimension 11913.87 CCM
Shipper - Metric Weight 4364.465 G
Shipper - Metric Net Weight 3683.16 G
Shipper - Metric Height Dimension 7.142 CM
Shipper - Metric Length Dimension 125.095 CM
Shipper - Metric Width Dimension 13.335 CM
Shipper - Item Quantity 40
Shipper - Total Unit Quantity 40
Shipper - Previous Packaging Level Quantity 40
Shipper - Previous Packaging Level Unit EACH
Shipper - Item Unit EACH
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 103130.12752009757 ci
Pallet - Customary Gross Weight 1112.9993213951107 lbs
Pallet - Customary Net Weight 909.4376962293259 lbs
Pallet - Customary Height Dimension 49.869685039370076 in
Pallet - Customary Length Dimension 49.25 in
Pallet - Customary Width Dimension 42.0 in
Pallet - Metric Cubic Dimension 1.69 M3
Pallet - Metric Net Weight 412.514 KG
Pallet - Metric Height Dimension 126.669 CM
Pallet - Metric Length Dimension 125.095 CM
Pallet - Metric Width Dimension 106.68 CM
Pallet - Item Quantity 4480
Pallet - Total Unit Quantity 4480
Pallet - Previous Packaging Level Quantity 112
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit EACH
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 14
Pallet - Shipping Container Per Layer Quantity 8
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