100 low profile 60mm Polypropylene washers made in the UK, colour black. Designed for fixing and securing Expanded Polystyrene Sheets (EPS), Extruded Polystyrene (XPS) and all types of soft to medium foam boards such as Celotex, Marmox, Kingspan, Stylite and Ecotherm | Low profile only 4.2mm when fixed (5.2mm total depth), 60mm in diameter | Suitable for screw size: 4, 5 or 6mm (5mm recommended) | Made from virgin Polypropylene a tough white engineering plastic resistant to most chemicals and acids. Reinforced design, easy to fix with good rigidity and balance. | All our products are manufactured by ourselves in the UK using the very latest production technology so that every single part we produce is not only identical but meets our design brief and your requirements

200 low profile 60mm Polypropylene washers made in the UK, colour black. Designed for fixing and securing Expanded Polystyrene Sheets (EPS), Extruded Polystyrene (XPS) and all types of soft to medium foam boards such as Celotex, Marmox, Kingspan, Stylite and Ecotherm | Low profile only 4.2mm when fixed (5.2mm total depth), 60mm in diameter | Suitable for screw size: 4, 5 or 6mm (5mm recommended) | Made from virgin Polypropylene a tough white engineering plastic resistant to most chemicals and acids. Reinforced design, easy to fix with good rigidity and balance. | All our products are manufactured by ourselves in the UK using the very latest production technology so that every single part we produce is not only identical but meets our design brief and your requirements