Hillman 1/4 In. - #14 x 1-1/2 In. Washer Head Self-Drilling Sheet Metal Screw (100 Ct.) LOCTITE Beveled vial housing for increased

Beveled vial housing for increased view

(inch) and 9/16 In

The Mailsafe can secure envelopes

Overall size showing on the surface is 9" square with a 5-1/2" hood and a 1-1/4" long attachment collar for 6" round ductwork (NOT for use with dryer venting)

Perfect for installation and repair of air conditioners

Hillman 1/4 In. - #14 x 1-1/2 In. Washer Head Self-Drilling Sheet Metal Screw (100 Ct.) LOCTITE Beveled vial housing for increasedSelf drilling screws are manufactured for use in wood, fiberglass and metal. They possess a drill point which enables the screw to drill its own hole in thin gauge steel; no pre drilled holes are necessary. The sharp threads create their own mating thread when drilled into the material, and provide a stronger grip to your surface. Perfect for roofing construction, these screws have a neoprene washer that provides a water tight seal, and prevents