Stainless steel nail with 3.35mm annular ring shank and tough 12mm, colour-fast polymer plastic head, for fixing capping, and fascia board around the roofline, and other colour-coded nailing. Marine grade A4/316 stainless steel shank that will not rust, so no fixing failure or unsightly staining. There is less chance of broken-top wastage during fitting also, because the head is made using extremely hard and rigid PA66 nylon. Use of high quality fixings, like StarPin from Rapierstar, will eliminate the inconvenience and high cost of returning to the site to correct the problems caused by cheap fixings.