Unistrut's P2788 Hinged Beam Clamp is designed to pivot up to 18? to easily mount strut systems to sloped ceilings. This unique design features serrated inside faces to prevent slippage and allows the strut to remain level even when the ceiling is not. In the past, contractors would use various methods to mount strut to sloped ceilings, such as bending or modifying products which compromised the integrity of the system. Unistrut's P2788 provides a safe and easy solution for mounting strut to a sloped ceiling. The Hinged Beam Clamp is compatible with any 1 5/8" strut profile and can be used on beam flanges ranging from 4" to 12" with a thickness up to 7/8".