#12 MAC™ SD3 Metal Self-Drill Screw, Stainless Capped HWH | MSD3-12

• 300 series stainless steel capped, integral cupped hex washer head configuration that can never red rust
• Assembled with EPDM washer
• Designed and engineered to have low driving and thread engagement torque and provide maximum clamp load
• Fasteners 1" and longer have special long pilot lengths to accommodate nested purlins
• Long life fastener limited warranty

Metal panel to light and medium gauge metal application

• Install fasteners with 0–2000 rpm screw gun equipped with depth sensing nose piece.
• Fastener length should provide for a minimum of 3/16" penetration of fully developed threads into metal substrate.
• Use of impact guns or hammer drills is not recommended.