Gas concrete pin nail, drive pin Diameter: 2.6,2.7,3.0,3.2mm Length:13,16,19,22,27,32,37 Use with gas nail gun GAS CONCRETE PIN NAILRaw materialC1045 , C1055…Diameter2.6,2.7,3.0,3.2mmLength 13,16,19,22,27,32,37ShankSmooth shank & shrink typeSurface galvanized ,zinc plated Packing 10pcs/strip, 100strips/box( 1000pcs/box) with one fuel cell Drive pin,concrete pin nail