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.

3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 08653, Performance Drywall Sanding Respirator N95 Particulate, 8210D2-DC, 7100157620, 2 Each/Pack
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 72654, Sanding and Fiberglass Respirator N95 Particulate, 8200H6-DC, 7100158824, 6 Each/Pack
3M 08656, Paint Odor Respirator, 8247P1-C, 7100159314
3M 62602, Scotch-Weld Threadlocker TL22, Purple, 50 mL Bottle, 7100039159, 10/case
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 54289, Paint Odor Valved Respirator, 8577P1-C-PS, 7100189852
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
3M 67668, Scotch ATG Adhesive Transfer Tape 976, Clear, 1/4 in x 36 yd, 2 mil, 7000028883
3M 05278, Adhesive Transfer Tape 927, Clear, 1 in x 60 yd, 2 mil, 7010302012
3M 84097, Adhesive Transfer Tape 9498, Clear, 3/4 in x 120 yd, 2 mil, 7000123445
3M 17316, Versaflo Respiratory Hard Hat Assembly M-305, with Standard Visor and Faceseal, 7000002382, 1 EA/Case
3M 37381, Versaflo Filter Cover TR-6500FC, for TR-6500 Series Cartridges, 7100021252, 1 EA/Case
3M 94933, Paint Sanding Valved Respirator 8511P2-C-PS-WM, 7100157701, 2 Each/Pack
3M 07044, Hood Assembly H-412/07044(AAD), with Collar and Hardhat, 7000002072, 1 EA/Case
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 37357, Versaflo High Efficiency Filter TR-6710N-5 / 37357(AAD), for TR-600 PAPR, 7100028247, 5 EA/Case
3M 33501, Sanding Respirator, 03201, 7000120129, 2 per pack
3M 07334, Scotch Double Sided Tape 665, 1 in x 1296 in Boxed, 7000050038
3M 03339, Adhesive Transfer Tape 465, Clear, 3 in x 60 yd, 2 mil, 7000122481
3M 67220, Scotch ATG Adhesive Transfer Tape 924, Clear, 1/4 in x 36 yd, 2 mil, 7000028880
3M 91896, Adhesive Transfer Tape 9627, Clear, 54 in x 60 yd, 5 mil, 7000001481
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 67336, Scotch Tape 3136, 7010295626
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
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
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 76632, Roloc Disc 777F, 50 YF-weight, TR, 3 in, Die R300V, 7000045628
3M 96898, Scotch Double Sided Tape 665-2PK, 1/2 in x 900 in, 7010383812
3M 37253, Adhesive Transfer Tape 9471LE, Clear, 27 in x 180 yd, 2.3 mil, 7000028915
3M 08301, Ultrapro Autobody Sealant, 08301, Tan, 5 oz Tube, 7100142901, 6 per case
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 54141, Particulate Welding Respirator 8212, N95 with Faceseal, 7000002027, 80 EA/Case
3M 31490, ATG Adhesive Transfer Tape 987, Clear, 3/4 in x 60 yd, 1.7 mil, 7000125268
3M 15547, Scrim Reinforced Adhesive Tape L1+RT, Clear, 1372 mm x 230 m, 0.08 mm, 7100089788
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 54143, Particulate Respirator 8233, N100, 7000002028, 20 ea/Case
3M 11418, Roloc Disc 361F, P240 XF-weight, TR, 3 in, Die R300V, 7000045106
3M 96188, Venture Tape Double Coated PET Tape 514CW, 72 mm x 50 m, 0.01 mm, 7100043906
3M 37347, Versaflo Standard Battery TR-630/37347(AAD), for TR-600 PAPR, 7100035835, 1 EA/Case
3M 88964, Adhesive Transfer Tape 9471, Clear, 48 in x 180 yd, 2 mil, 7000123472
3M 54285, Particulate Respirator 8271, P95, 7000002047, 80 EA/Case
3M™ 07012, Supplied Air Hose W-9435-100/07012(AAD), 100 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005375, 1 EA/Case
3M 15681, Scotch ATG Adhesive Transfer Tape 924, Clear, 3/4 in x 60 yd, 2 mil, 7000144694
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle,Straight, 7000031879
3M 19314, Adhesive Transfer Tape 9667MP, Clear, 27 in x 180 yd, 2 Mil, 7010334044
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Standard Abrasives 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 46464, Particulate Filter 5N11, N95, 7000002008, 100 EA/Case
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 01882, Scotch-Brite Metal Finishing Wheel, MF-WL, 5A Medium, 12 in x 2 in x 5 in, 7000045892
3M 66278, Replacement Particulate Filter 5P71-6, P95, 7010301693, 6/Box
3M 62817, Adhesive Sealant 760 UV, Black, 290 mL Cartridge, 7100139449, 12/Case
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244
3M 08682, Single Step Primer, 30 mL, 7100079772
3M 90122, Scotch-Brite Deburr and Finish Pro Unitized Wheel, DP-UW, 8C Coarse+, 3 in x 1/2 in x 1/4 in, 7100105530
3M 19674, Scotch-Seal Industrial Sealant 800, Reddish Brown, 5 oz Tube, 7000000792, 36/Case
3M 58526, Adhesion Promoter 111, Clear, 1 Gallon Drum (Can), 7000001324
3M 49938, Roloc Disc 361F, 80 YF-weight, TSM, 2 in, Die RS200PM, 7000119019
3M 11031, Low VOC Double Coated Tissue Tape 99015LVC, Clear, 1500 mm x 50 m, 0.15 mm, 7100085845
3M 11000, Roloc Disc 361F, 24 YF-weight, TR, 2 in, Die R200P, 7000028183
3M 89835, Adhesive Transfer Tape 9506, Clear, 24 in x 180 yd, 5 mil, Flag splices, 7010334188
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case 