Simpson Strong Tie PC6Z 6x Beam/Post 16-gauge Post Cap New Style 5-1/2" W to accomadate 6x Post and Beam Sizes Use with 10d Fasteners in Post and Beam 16 Gauge Material Use with , 4x6's, 6x6's or 6x8's Z-Max:Hot Dip Galvanized(G185) 1.85oz of zinc per sq-ft surface area per ASTM A653 total both sides