Polyhead Nails, also known as plastic cap nails, feature a large, flat head made of polyethylene or similar materials, providing enhanced holding power and resistance to weathering. Ideal for securing roofing felt, house wrap, and insulation materials, the polyhead design prevents tearing and offers a waterproof seal around the nail shaft. Their sharp point and rigid construction ensure easy penetration and a secure hold, making them essential for roofing and construction projects where durability and weather resistance are crucial.