Need sturdy, weather-resistant fasteners for outdoor or roofing jobs? This pack of 50 black poly top pins has you covered. Each pin is 30mm long and made from tough UPVC polymer with an A4 stainless steel core, so they stand up to impacts and UV exposure without corroding or breaking down. Perfect for fixing roofing felt, membranes, or lightweight panels, they're easy to drive in and hold strong. Whether you're a DIY enthusiast or a pro, these pins are reliable, easy to handle, and come in a handy pack so you always have enough on hand. No rust, no fuss — just solid holding power.