Metal Strapping Clips for 12mm Poly Strap Strapping seals provide a secure closure for poly strapping, helping to ensure that the strap remains tight and does not loosen or slip off. We make these metal seal clips from durable steel and design them specifically for use with 12mm wide poly strapping. To close the clip securely, you will need a sealer tool to attach and close the metal seals around the strap. They call this type of metal clip the 'open type' seal. It has an opening on one side to slide the strap through before closing it. Metal strapping seals creates a strong and reliable closure. It stays secure and does not loosen over time because of its design. These metal clips are available in 12, 15 and 19mm sizes to suit different plastic strapping widths. We stock strap clips and seals to suit PET and steel strapping. Features and Benefits of Poly Strapping Clips: Suits 12mm wide poly strapping. Durable steel. The open type is easy to clip on. Stronger fastening than plastic buckles . Used with a 12mm sealer. Shop Metal Strapping Clips Online We offer strapping clips wholesale at lowest prices. Contact us for more information and strap clip bulk discounts. Shop our complete range of tools and accessories online.