Self-drilling Screws Do you know that 32% of fastening parts in the US are sourced from Taiwan? Let ZONBIX connect you to the world's most intimate fastener ecosystem. Self-drilling Screws (SDS) are almost a must-have in the construction industry. They feature a pointed tip, which functions as a built-in drilling bit. With the unique design, SDS can be driven in various structures without a predrilled pilot hole 鈥?as a result, speeding up the installation and lowering the overall cost. With the right material and mechanical properties, these unique screws can be even used to fasten metal to metal. Asides from standard QC reports we do at ZONBIX, each SDS order can opt for additional testing on penetration capability, drilling speed, and a few more. Available in common IFI, DIN, and JIS standards with many head/drilling point combinations. Made to print orders are ZONBIX鈥檚 forte. A variety of packaging options to choose from: bulk, 8 different carton sizes, tool kits, etc. Customized labeling available. Worry-free, traceable production and shipping log records available in real-time on ZONBIX website. ZONBIX products can be found across the six continents -- from Europe and America to Asia and the Middle East. Reliable quality ensured by cutting-edge inspection equipment (e.g. Keyence IM-6120 instant dimension measurement system) and latest QC protocols. A ZONBIX representative will always be there for you -- even after the goods arrive at your warehouse. Contact us now to start your ZONBIX Experience!Self-drilling Screws website:http://www.fasteners-taiwan.com/bolts/self-drilling-screws/