Our remarkable 3M Dual Lock Reclosable Fastener SJ3871 can be opened and closed over and over, up to 1,000 times before losing 50% of the original strength for repeated access or repositioning. The mushroom heads easily slide over each other allowing positioning of parts before they are snapped together to create a firm fastening attachment. When mated the fasteners are hidden from view and leave you with an unbroken surface to help create a smooth, clean appearance. The type 400 stem density polyolefin fastener mates to type 170 or 250 giving the user the option of different closure strength depending upon application.
Recommended Applications
- General industrial
- Transportation
- Specialty vehicle
- Medical
- Packaging
- Point of purchase displays
- Exhibits
- Electronics
- Construction
- Furniture
- Maintenance repair and operations (MRO)
This fastener is backed by a modified acrylic adhesive that bonds to many plastics (polyethylene, acrylic, polycarbonate and ABS), powder coated paints and medium to low surface energy materials with little or no surface preparation.
Hear the Snap
?Snap!? It?s the one word that best defines our extensive line of 3M Dual Lock Reclosable Fastener products. Here?s how it works: When two pieces of 3M Dual Lock Reclosable Fastener are pressed together, the stems flex and the mushroom heads slide past each other. After passing the mushroom heads on the opposing mating piece, a stem snaps up into its original position, interlocking with the opposing heads. Listen for the audible snap to signal that the fastener is engaged. The attachment formed may be as effective as screws or rivets, but will peel apart for repositioning. 3M Dual Lock Reclosable Fasteners are used extensively in transportation, electronics, business equipment, machinery, medical and sign and display markets.
Lose the Screws
The bond is strong but can easily be detached; just pull apart to disengage and reattach as needed. This means that our product gives you a strong, hidden closure with the convenience of multiple openings and closings so you can lose the screws, rivets, hooks, bolts, zippers and other unsightly attachment methods. In short ? our product is an aesthetically pleasing fastener that doesn?t sacrifice attachment strength; in fact, the 3M Dual Lock Reclosable Fastener SJ3871 is about five times stronger in tensile strength than 3M Hook and Loop Fasteners used in comparable applications. In many cases, this attachment method also saves the user money with less material used. Additionally, there?s no need to drill holes that might weaken the part or substrate, and no tools required to assemble or remove the part.
You expect more options to secure, attach and connect surfaces. 3M Dual Lock Reclosable Fasteners offer quick installation and high-strength attachment, yet can be opened as easily as zippers. That functional flexibility, as well as superior aesthetics, reduced weight, and savings in labor and installation costs, make our innovative fasteners a popular and effective solution.

ACS CX1250 Diamond Belt, 1/2" X 24" 20u
3M 87179, Scotch-Weld Epoxy Adhesive 2216NS, Tan, Part B, 5 Gallon Drum (Pail), 7010309882
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 45557, Cubitron ll Cloth Belt 784F, 60+ YF-weight, 2 in x 72 in, Film-lok, Single-flex, 7010299100, 50 per case
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 06504, Marine Adhesive Sealant 5200, Black, 295 mL Cartridge, 7000042727, 12/Case
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 25705, Scotch-Brite Roloc Surface Conditioning Disc, SC-DR, A/O Medium, TR, 3/4 in, 7000120983, 200/case
3M 19674, Scotch-Seal Industrial Sealant 800, Reddish Brown, 5 oz Tube, 7000000792, 36/Case
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
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3M 62611, Scotch-Weld Threadlocker TL62, Red, 250 mL Bottle, 7100039195, 2/case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 05182, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1/2 in x 1 in, 7100050403,Box of 4
3M 26046, PPS Series 2.0 Adapter, Type S15, 3/8 Male, 19 Thread BSP, 7100135334
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
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3M 41531, Scotch-Weld Epoxy Adhesive 420, Black, Part B, 5 Gallon Drum (Pail), 7000000827
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 13325, Disc Pad Face Plate, 4-1/2 in Medium Gray, 7000120513
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle,Straight, 7000031879
Standard Abrasives 715081, A/O Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 60, 7100102991
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3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
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3M 05520, Sanding Block, Rubber, 2-3/4 in x 8 in, 7000028366
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3M 64659, Scotch-Brite Durable Flex Hand Pad, MX-HP, A/O Very Fine, 4-1/2 in x 9 in, 7100042334, 25/Carton
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