SD Pro-TekTM self-drilling fastener is developed for
metal-to-metal building applications. The innovative
SD Pro-TekTM with a larger head diameter limits wind
uplift, and the concealed EPDM tubular washer
system allows for a weather-tite seal. The engineered
flat surface area on the SD Pro-TekTM also provides
positive nutsetter engagement, preventing wobble
during fastener install. Deep root cut threads give
the SD Pro-TekTM Maximum Holding Power when
installed into metal building panels!