Coil nails Material:Q195 Q215 Q235 Shank:smooth, twisted(screw), Ring Diameter:0.083" 0.09"0.099"0.113"0.120" 0.131" Specifications:1) Length: 1-1/2'', 1-3/4'', 2'', 2-1/4'', 2-1/2'', 3'', 3-1/4'', 3-1/2''2) Diameter: 0.083'', 0.9'', 0.099'', 0.113'', 0.120'', 0.131'' 3) shank:smooth,screw(twisted),ring4) Surface treatment :polished,galvanized,vinyl coated5) Basic point type: DP, CP, FP, BDP6) ...