Budget Flame Retardent 60mm Plastic Washers for Fixing EPS, XPS, Rockwool, Fiberglass, Soft/Medium Insulation

Manufactured from Flame Retardant Polypropylene.

(In layman's terms this means the plastic self extinguishes and doesn’t drip when subjected to a fire.)

These washers although flame resistant are not fullly V0 compliant (UL 94 Flammability) as the rib thickness is below the required 1.5mm ( Actual thickness 1.2mm)

Details

• Reinforced design
• Made from virgin  Flame Retardant Polypropylene a tough white engineering plastic resistant to most chemicals and acids
• Low profile only 4.2mm when fixed (5.2mm total depth).
• Easy to fix with good rigidity and balance.
• Natural Colour

Use with screw size: 4, 5 or 6mm