... -200mm Head diameter: 2.5mm-6mm concrete nails1. Uses:Mainly for building construction,packing and furniture.2. MaterialQ195 or 235SpecificationsCountersunk,Checkered ... head,Diamond Point,Polished, galvanized.Length1/2"-10",BWG6-18 for all kinds of round Nails3.packing: A).small plastic bag ... /T with 30% deposit or L/C at sight good quality and best price for concrete nails