Binder Prong Fasteners Donau model 7792925F-18, polypropylene with metal plate, 25 pcs, navy

Donau binder prong fasteners model 7792925F-18 are polypropylene prongs with an integrated reinforcing metal plate, supplied as a pack of 25 in navy. Designed to secure punched documents in ring binders and lever arch files, these fasteners combine corrosion-resistant metal support with lightweight polypropylene prongs to provide reliable document retention for everyday office filing and archiving.

Advantages

The combination of polypropylene prongs and a metal reinforcement plate offers durability and stable clamping without adding significant weight. The metal plate reduces deformation under load and resists corrosion, while the PP prongs provide flexibility for easy insertion and removal of documents. Supplied in a convenient 25-piece pack and finished in navy, these fasteners are suitable for consistent, repeatable use in administrative and archive environments.

Suitable for

• Securing punched paper documents in ring binders and lever arch files
• Office filing and day-to-day document organization
• Archiving paperwork where reinforced fastening helps prevent slippage
• Administrative departments, schools, and accounting offices

Key specifications

• Material: polypropylene prongs with reinforcing metal plate
• Pack quantity: 25 pieces
• Color: navy
• Design: two-prong fastening suitable for punched sheets

How to use

Align punched documents on the binder spine or lever arch mechanism, insert the prongs through the punched holes, then fold the prongs over the metal plate or into the binder's catch to secure the stack. For thicker sets, distribute sheets evenly and ensure the metal plate sits flat against the binder base to maintain consistent pressure across the document bundle. To remove or rearrange, unfold the prongs and slide documents off the fastener.

Usage recommendations

For best performance, use these fasteners with standard punched paper (e.g., A4 with two or more punch holes) and avoid forcing overfilled binders; periodic inspection for corrosion on metal parts in humid environments is advised despite the corrosion-resistant finish.