Simpson HU3.25 12TF 3 1 8 x 12 Top Flange Face Mount Hanger Galvanized Self Drilling Wafer Head Screw with Wings Centre point balanced tip Centre point balanced tip the balanced centre point keeps the drill on target from the moment of entry The HW carbide cutting head combined with the PTFE coated spiral addresses two of the most common problems in production boring premature edge wear and chip resin buildup keeping cycle times short and regrind intervals longer Face nailing attachment allows the hanger to be securely fastened directly to the supporting member Two connection methods in one hanger the hybrid top flange and face mount design eliminates the compromise between bearing support and nailing flexibility