3M™ Dual Lock™ Reclosable Fastener MP3541/MP3542 Is The Convenient Alternative to Traditional Fastening Methods, Such As Screws, Nuts or Bolts. It Is Designed to Deliver A Durable, Reclosable Fastening Solution (Which Can Be Opened and Closed Multiple Times) Which Bonds to A Variety Of Substrates Including Many Plastics and Low Surface Energy Materials.