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close-up of inter-locking dual lock

3M™ Dual Lock™ LSE* Fastener

3M™ Dual Lock™ Reclosable Fasteners can replace screws, bolts and rivets. The fasteners contain hundreds of mushroom-shaped stems that audibly “SNAP” together to form a secure attachment. The low surface energy adhesive (LSE) on the back of this product provides an excellent bond to many substrates, including polyproplyene, polyethylene, metal and finished wood.

*Low Surface Energy backing adhesive.

More information:

Available at shop3m.com
LSE Reclosable Fasteners One inch Two Inch More...
170 SJ3542
170 stems/inch2
1” x 50 yd 2” x 50 yd Black foam adhesive & white polyethylene film liner.
Bonds well to high density polypropylene and polyethylene.
250 SJ3540
250 stems/inch2
1” x 50 yd   Black, polypropylene reclosable fastener.
Rubber based pressure sensitive adhesive.
400 SJ3541
400 stems/inch2
1” x 50 yd 2” x 50 yd Black foam adhesive & white polyethylene film liner.
230 mil engaged thickness.