Dottie DDSMS123 Screw, #12 3" Square Drive Pan Head Sheet Metal Screw

Designed for reliable, long-lasting installations, the Dottie DDSMS123 sheet metal screw delivers secure fastening where it matters most—security, surveillance and industrial monitoring systems. These #12, 3-inch square drive pan head screws provide the length and head profile installers need to fasten camera brackets, junction boxes and metal enclosures through multiple substrates. The self-tapping, hardened spaced threads create their own internal threads for faster assembly and reduced prep time, while the square drive minimizes cam-out for consistent torque control.

Manufactured from case-hardened carbon steel and zinc-plated for corrosion resistance, the DDSMS123 meets ASME dimensional standards and is rugged enough for indoor and outdoor CCTV, access control and network rack mounting. With an 11 TPI thread form and a pan head that spreads clamping load, each 100-count pack supports project-scale installs and maintenance crews looking to stock reliable fasteners. Choose Dottie sheet metal screws when you need dependable, professional-grade hardware for security and low-voltage installations. Order bulk packs for your next camera, enclosure or panel mount project.

• Secure, vibration-resistant mounting for security and surveillance equipment, reducing callbacks and rework
• Self-tapping, hardened threads speed installation into metal, wood, and plastic without pre-tapping
• Square drive reduces cam-out for faster, controlled driving and fewer stripped heads on-site
• 3-inch length and pan head profile distribute load for thicker mounts and enclosures
• Zinc-plated carbon steel construction resists corrosion for durable outdoor and monitoring installations