Mount, Extension Column, Ceiling Plate The Chief KITPD003W Projector Mount Kit takes the guesswork out of assembling everything you need to ceiling mount your video projector.The kit includes the RPAU Universal Projector Mount coupled with a 3" extension, both designed to work with a wide variety of projectors and installation scenarios. Finally, the included Speed Connect Ceiling Plate provides secure an installation in ceilings made from a solid material. Mount Ships with a universal bracket to fit most inverted projectors on the market. Independent roll, pitch and yaw for quick and precise projector image registration. Quick projector connect and disconnect with convenient lamp and filter access on most projectors. Maintains registration when disconnected and doesn't affect preset adjustments. All-Points Security Systems provides exclusive steel into steel locking hardware at all connection points to protect against theft. Multiple installation options: flush mount to ceiling, 0.25" threaded rod, or 1.5" NPT threaded extension column. Integrated cable management through top of mount without additional accessories. 3" (7.6 cm) Extension Column Aluminum extension column features easy installation and maximum strength. Consists of 1.5" NPT column, threaded on both ends. Use in combination with any Chief 1.5" NPT ceiling plate or other accessory. Speed Connect Ceiling Plate For mounting into solid ceiling. Low-profile, aesthetic design. Integrated cable management - allows cables to exit the top of the plate through the cable exit port. All-Points Security System exclusive locking hardware at column connection point to protect against theft. All-Points Security System provides exclusive locking hardware at column connection point to protect against theft. Aluminum construction for optimal strength in a lightweight design. 1.5" NPT compatible.