BDN Fasteners India Pvt. Ltd. offers Class 3 Screws for applications requiring enhanced corrosion protection in moderately exposed environments. These fasteners suit projects where exposure to weather and moisture requires more protection than standard finishes provide. Class 3 options can be considered for various external construction and roofing applications. Selecting the right coating and fastener specification helps support reliable performance under expected service conditions. More Info Here: https://bdnfastenersindia.in/blog/a-guide-to-class-3-and-class-4-corrosion-protection-fasteners/