package contents | Omni-Directional Antenna; Ceiling mount kit consists of the following hardware:One T-rail grid bracket; One bracket plate; Two internal tooth lock washers; Two #6-32 x 1/4-in. SS Phillips machine screws; One I-beam clamp; One 1/4-in. flat washer; One 1/4-in. split lock washer; One 1/4 x 20 x 1/2-in. hex head bolt; Pole (mast) mount kit consists of the following hardware:Six 5/16-in. x 18 SS hex nuts; Four 5/16-in. SS lock washers; One U-bolt; One V-bracket; Two base brackets |