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Cut-To-Size Services Available! Email [email protected]

3M™ Dual Lock™ SJ3440
3M™ Dual Lock™ SJ3440

3M™ Dual Lock™ SJ3440

Your Price: $15.90
Part Number:SJ3440
  • Stem Count:250 stems / square inch
  • Mates To:Type 170, 250 & 400
  • Engaged Thickness:0.16 inches

Choose Options

Quantity Pricing- By The Yard
  • 1 - 5
  • $15.90
  • 6 - 24
  • $12.70
  • 25 - 49
  • $10.38
  • 50 - 99
  • $7.54
  • 100+
  • $6.51

Quantity Discount: Price Per Yard

Note:  This product comes UNMATED. Therefore if you order 10 yards, it equals 5 yards of fastened material. 
Multiple-yard orders will be combined into rolls.
Plain Back polypropylene reclosable fastener with 250 stems per square inch for attachment to fabrics via sewing or to wood or similar surfaces using staples.  Meets many automotive certifications.  We offer 1" and 2" wide.  1" wide is made to order with up to a 4 week lead time when out.  3M also has cases of 1/2" and 6" wide rolls in black and 1/2", 1" 2" and 6" wide rolls in clear, SJ3460, that we can order for you.


3M™ Dual Lock™ Plain Back Reclosable Fasteners offer advanced closure alternatives to zippers, screws, snaps, hooks, bolts, and more. They offer greater design flexibility, faster product assembly, smoother and cleaner exterior surfaces and improved product performance in many applications. The fasteners consist of continuous strips of polyolefin with polyolefin stems having a mushroom-shaped top. The mushroom heads allow the fasteners to easily slide over each other allowing positioning of parts before they are snapped together creating a firm fastening attachment. Simply peel the pieces apart by hand to disengage.  3M ID:  70-0705-2102-9          UPC:  0-00-21200-65808-2 

* 3M has phased out this part number because it is a duplication. SJ3780 is the same part, and will be the part number retained by 3M.

See our By the Yard, Pre-Cut Coins, or Pre-Cut Strips selections in 3M Dual Lock section!  We have other widths or offer a slitting service.

Cut-To-Size Service, we can provide laser or die cut strips, circles or shapes so forward your dimensions and quantity to [email protected] for an estimate.

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