Durable Heftstreifen Flexi 38 x 150 mm blue with metal tongue and extra-strong PP strip (6901-06)

Durable Heftstreifen Flexi 38 x 150 mm in blue are stapling strips designed to fasten documents securely in folders, files and archives. Each strip features a metal tongue that pierces and locks into paper while an extra-strong polypropylene (PP) top strip increases tear resistance and extends service life. The product is suitable for manual stapling tools and provides a discreet, low-profile fastening that keeps documents organized without bulky staples.

Advantages

The combination of a metal tongue and a reinforced PP strip delivers a reliable hold and improved durability compared with plain paper strips. The blue colour provides clear visual identification in files and folders, while the 38 x 150 mm dimensions fit common document formats and standard filing systems. Compatibility with manual stapling tools makes these strips practical for office, archive and school environments where fast, repeatable fastening is required.

Suitable for

• Binding miscellaneous papers in folders and files
• Archiving documents that need a secure but slim fastening
• School and administrative paperwork where manual tools are used
• Temporary or semi-permanent document assembly in offices

Key specifications

• Colour: blue
• Dimensions: 38 x 150 mm
• Top material: extra-strong polypropylene (PP) strip for tear resistance
• Fastening element: metal tongue for secure paper penetration and locking
• Compatibility: designed for use with manual stapling tools
• Profile: slim, low-profile fastening suitable for neat filing

How to use

Position the documents to be fastened and mark the desired fastening point near the folder edge. Insert a Durable Heftstreifen Flexi strip between the pages so the metal tongue faces the paper stack, then apply a compatible manual stapling tool to press the tongue through the sheets and fold or secure it on the other side according to the tool instructions. Ensure the PP top strip is aligned to distribute pressure evenly and avoid concentrated stress on a single sheet.

Usage recommendations

For best results use with manual stapling tools recommended by the manufacturer and avoid overloading a single fastening point with excessively thick stacks. Store strips in a dry environment away from direct sunlight to preserve the PP strip and maintain reliable performance over time.