The CorruBracket 100T Mini is a bit shorter than its standard counterpart, the CorruBracket 100T and has two pre-punched holes in its base rather than four. The mini is the choice for attaching all kinds of rooftop accessories: signs, walkways, satellite dishes, antennas, rooftop lighting, lightning protection systems, solar arrays, exhaust stack bracing, conduit, condensate lines, mechanical equipment just about anything! S-5!® mini brackets are not compatible with, and should not be used with, S-5!® SnoRail /SnoFence , or ColorGard, or X-Gard snow retention systems. Having no messy sealants to apply, CorruBracket 100T Mini comes with a factory-applied EPDM rubber gasket seal already on the base, and the S-5!-patented reservoir conceals the EPDM from UV exposure, preventing UV degradation. The slotted top hole, which accommodates standard M8 nuts and bolts, simplifies alignment and maximizes flexibility in attaching ancillaries. A structural aluminum attachment bracket, CorruBracket 100T is compatible with most common metal roofing materials. Includes four (4) self-piercing gasket head screws and one (1) M8 nut. Installation is simple! CorruBracket 100T Mini is mounted directly into the crest of the corrugation, straddling the valley. No surface preparation is necessary; simply wipe away excess oil and debris, align, and apply. Secure directly into the crest of the corrugation by driving the appropriate screws into the pre-punched holes, or pre-drilling the proper-sized hole through the pre-punched holes and riveting.