General description TIMco In-Dex Timber framing screws are an innovative alternative to traditional coach screws, specifically designed for various structural building and landscaping applications such as decking, roofing, fencing, and railway sleepers. These screws feature an 8mm hex head with a fixed washer that ensures excellent clamping in all wood types, providing a reliable and secure fixing. Technical specifications Gauge: 6.7mm (widest part of thread) Length: 200mm (from underneath head) Head: 8mm hexagon head Plating: Organic green, tested for 1,000 hours minimum salt spray resistance Usage Ideal for timber to timber applications Suitable for external applications due to corrosion-resistant plating