General description Designed as an alternative to traditional coach screws, the TIMCO Wafer Head Exterior Green Timber Screws are specifically made for timber-to-timber applications. Coated with a patented multi-layer corrosion-resistant plating, these screws are ideal for external use. Technical specifications Dimensions: 6.7 x 95 mm Coating: Patented multi-layer corrosion resistant plating Other information Stainless steel must be used where necessary.