We offer a comprehensive range of screw production equipment—including cold heading, thread rolling, and assembly machines—alongside full-specification drilling tail screws, supported by ODM, OEM, and non-standard customization services.
YWC Corrugated Nails, also known as umbrella head roofing iron nails, are dedicated fasteners for corrugated roof sheets and asbestos tiles. They adopt a large umbrella-shaped head and optional assembled EPDM rubber sealing washer for waterproof leakage prevention. Two shank selections: twisted corrugated shank and smooth shank improve anti-loosening performance. Surface treatments include electro galvanizing, hot-dip galvanizing and color painted head coating for long-term outdoor rust protection. These roofing nails are widely used to fix corrugated metal sheets, fiber cement tiles and roofing felt. We supply standard sizes and customized bulk packing for roofing contractors and hardware importers.
Corrugated Nails are umbrella-head iron nails for corrugated roof sheets and cement tiles. Equipped with optional EPDM rubber washers for waterproof sealing. Twisted corrugated shank and smooth shank are available. Electro-galvanized, hot-dipped galvanized and color-coated heads provide durable outdoor anti-corrosion performance. Perfect for installing metal corrugated panels, asbestos tiles and roofing felt. Stable quality, competitive factory price, customized sizes and export bulk packages are acceptable.
