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The SOUTHWARK METAL 1208 is a drive cleat used to join and secure sections of rectangular sheet metal ductwork. At 60 inches in length, this single piece covers full 5-foot duct joints without splicing. It is fabricated from hot dip galvanized steel, providing corrosion resistance in both conditioned and unconditioned spaces. HVAC sheet metal workers and duct installers use drive cleats as the standard mechanical fastener for connecting transverse duct flanges in low-pressure air distribution systems. The 1208 meets ACCA and SMACNA standards, making it suitable for work on jobs that require documented compliance with those industry specifications.
Drive cleats are a fundamental component of residential and light commercial ductwork fabrication and installation. This cleat is sized for standard rectangular duct connections where a full-length, uncut cleat is preferred to maintain joint integrity across the entire duct face. It is commonly used by sheet metal contractors, HVAC installers, and mechanical trades on new construction and retrofit projects involving galvanized steel duct systems.
Designed as an OEM-style component for use with standard rectangular galvanized steel ductwork assembled to SMACNA and ACCA specifications.
Drive cleats are installed by licensed sheet metal workers or HVAC technicians following SMACNA duct construction standards. Seat the cleat over both duct flanges and drive fully using a hand seamer or drive cleat setter tool before the system is pressurized. Ensure duct sections are properly aligned before seating the cleat to avoid joint gaps. Follow applicable mechanical codes for duct joint requirements in your jurisdiction.
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