UNIVERSAL TOWERS TOP PLATES :

Packages typically include a mast collar for a 2 in. OD mast with a welded bearing mount top plate specially drilled Trust bearing Model: 1 5/8" SC 4-B & Model: 2 1/16" SC 4-B, sold separately. Packages with other mast collar sizes and without bearing top plate are available by request. A variety of optional Rotator Plates are also available. Chose yours to fit the top section of the tower package selected; R-11, R-14 or R-18. Each is available undrilled or predrilled for popular rotator models. Universal Towers Aluminum Masts in various lengths and sizes are available . Roof mounts are available