Snap on metal seals for use with steel strapping & steel strapping sealers, refs: DNS13, DNS16 & DNS19 which clinch metal seals with a double notch. Simply put the seal around the section of strapping which you would like to secure & seal using one of our steel strapping sealers. When purchasing metal seals for steel strapping please ensure that you are purchasing the correct seal size for the width of strapping you are using. There are 3 different width metal seals available to correspond with our widths of steel strapping. Ref 401 is suitable for use with 13mm wide strapping. Ref 501 is suitable for use with 16mm wide strapping. Ref 601 is suitable for use with 19mm wide strapping. Order now online or call us on 0800 542 44 28 for packaging & shipping advice. Sold in boxes of 2000 seals.