Steel nail 1,Length: 1"-4" 2,Shank: smooth screw Ring 3,Surface: galvanized, vinyl coated 4.ISO9001 ST nails a) Nails head: 6.4 x 2.2mm b) Shank diameter: 2.20 c) Length:18mm-64mmST nails1)Specifications:a) Nails head: 6.4 x 2.2mmb) Shank diameter: 2.20c) Length: 18 - 64mm (3/4 - 2 x 1/2")2) Models: ST18, ST25, ST32, ST38, ST45, ST50, ST57 ST643) Mainly used in nailing concrete, batten or plate ...