How Can You Ensure Long-Term Fastener Performance in Coastal and High-Humidity Roofing Applications?

Our chamfered hex washer head drilling screws feature trivalent Dacromet plating that provides minimum 1000 hours AASS protection, specifically engineered for metal roofing exposed to moisture and salt environments. The self-drilling tail eliminates pre-drilling while the integrated washer head creates superior weather sealing. Contact us for coating inspection reports and custom specifications tailored to your roofing panel thickness and environmental exposure requirements.

With 45 years of manufacturing expertise, we inspect critical measurement points including hex flat and corner dimensions, washer diameter and height, total head height, thread length, major and minor diameters, thread angle, and pitch specifications. Our coating inspection reports provide documented verification of the trivalent Dacromet plating quality, ensuring consistent performance across production batches. The chamfered hex washer head design provides optimal load distribution and sealing capability, while the drilling tail eliminates pre-drilling requirements, significantly reducing installation time and labor costs. These coating screws are engineered for OEM manufacturers and aftermarket customers requiring reliable, long-lasting fastening solutions in HVAC systems, metal roofing, automotive assemblies, and industrial equipment where corrosion resistance and structural integrity are paramount.