Looking for a self-drilling screw that won't let you down on-site or years later on a roof exposed to rain, humidity, and monsoon weather? BDN Fasteners India Pvt Ltd's metal-tite-self-drilling-screws are engineered specifically for metal roofing and cladding work — covering everything from side-lap stitching and crest fixing to sandwich panel installation and heavy structural steel sections. Every screw in the range drills, taps, and fastens in a single pass: no pilot holes, no pre-drilling, just a faster install with less labour on every job.