lier of electro-galv. round roofing nails and thermal/hot dipped galvanized iron roofing nails. roofing nails,size - 10 BWG x 2.5 material,standard carbon steel Q195 ,length:2.5'',umbrella:15-18mm, diameter of the shank:3.4mm, twist or smooth shank,Net Wt. - 25 Kg,Gross Wt. - 25.4 Kg,Carton measurement - 44 x 31.5 x 19.5 cm, each carton contains 8 blue boxes of 3.125 Kg net wt 3.175 Kg gross wt. packing:7lbs/inner box and 8 boxes/carton,small box shows - 3.4 mm x 65 mm dimensions picture of Um