Phillips flat head with nibs particle board screw, typ-17. black oxide. Black Oxide is a conversion coating that is used to add mild corrosion resistance and for appearance. Type ‘17’ reduces wood splitting and eliminates the need for pre-drilling. Asymmetrical thread pattern. Superior holding power. Application: Wood screw for interior wood applications. Attaches wood to wood. Installation: A standard screw gun with torque limiting nose piece set at a maximum of 3000 RPM drive speed recommended. Use a #2 reduced Phillips drive bit. The fastener is completely installed when the fastener head is seated flush with the work surface. Do not over torque as it can cause the head to snap or damage to the work surface. Specifications: • Meets ASTM1 A 510 for carbon steel manufacturing • Product meets ASTM B-117 for salt spray corrosion testing