Delivers Durability
3M™ Hook Fastener SJ3402 is our general purpose hook fastener that features no adhesive or liner. It is an attachment alternative to a wide variety of closures, including zippers, screws, snaps, hooks and more. This fastener is covered with flexible J-shaped hooks, about 300 hooks per square inch (46 hooks/square cm.), which protrude up from a woven backing. Commonly paired with 3M™ Loop Fastener SJ3401, this hook fastener can also engage with other 3M™ Loop Fasteners. To ensure stability and flatness, both the hook and the corresponding loop are preshrunk.
Recommended Applications
- Uniforms
- Gloves and clothing
- Securing fabric to furniture cushions
- Carpet panel attachments
No Adhesive or Liner for Easy Customization
The backing of 3M™ Hook Fastener SJ3402 is free of adhesive or liner, allowing for easy customization. The fastener is most commonly attached by sewing, but can also be applied using hot melt or liquid adhesives (temperature resistance may change based on adhesive used). It provides a tailored appearance for fabrics and garments and is both washable and dry cleanable.
Secure, Repeated Closures
3M™ Hook and Loop Fasteners offer great design flexibility, fast product assembly, smooth and clean exterior surfaces and excellent product performance in many applications. 3M Hook and Loop Fasteners consist of hooks and loops which engage to form a quick fastening attachment. To disengage the attachment, simply pull the strips apart by hand.
Bringing it All Together
3M™ Hook and Loop Fasteners provide the strong, tough attachment solutions you need. Simply press together and the tiny, stiff hooks mesh with pliable loops to create a quick, secure fastening system. Backed with a variety of 3M adhesive technologies, you can easily meet application demands that require thousands of easy opening and closings.

3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 20942, Scotch-Weld Urethane Adhesive 3549, Brown, Part A, 5 Gallon Drum, (Pail), 7100041738
3M 26585, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Clear, 1.8 mm, 7100152955
3M 71883, Flexible Diamond Hand File 6210J, No 2, White, 18, N20, 7000082161, 10 Per Case
3M 20930, PSA Cloth Disc 348D, P120 X-weight, 1 in x NH, Die 100N, 7000118916
3M 29829, Sanding Screen, 80 Grit, 19 in x NH, 7100160252
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Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M 29837, Sanding Screen, 180 Grit, 17 in x NH, 7100160762
3M 29821, Sanding Screen, 150 Grit, 20 in x NH, 7100160254
3M 14343, Marine Adhesive Sealant 4000 UV, Black, 600 mL Sausage Pack, 7010309931, 12/Case
3M 30025, Pressure Sensitive Spray Adhesive 72, Blue, 24 fl oz Can (Net Wt 17.3 oz), 7000046588, 12/Case
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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
3M 29830, Sanding Screen, 60 Grit, 19 in x NH, 7100160131
Dynabrade 95544 Gear Grease, 2.5oz. Tube
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Dynabrade 51301 .5 hp Straight-Line Die Grinder
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3M 29831, Sanding Screen, 180 Grit, 18 in x NH, 7100160238
3M 02960, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1 in x 1 in, 7100009186, Box of 3
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099 
