15-Degree Ring Shank 7200 Count Coil Roofing Nails Electro Galvanized Coil Roofing Nails Quantity - 7200count Description: Diameter: 0.120" (3 mm)Round Head Diameter: 3/8"Fastener Coating: Electro-GalvanizedShank Type: Smooth Premium Material: It is made of electro-galvanized which can offer superior corrosion protection. For use with most 15 Deg (degree) coil siding and fencing nailers Application: Wire collated nails are used for both new roofs and reroofing, also for attaching roofing felt, metal drip edges, insulation board, and vinyl siding. How many nails are there? This kit contains 60 rolls, 120 nails per roll, 7200 nails in total. Can you use these for metal siding? If the wall panel being installed is not too thick, you can use these nails to nail the metal wall panel.These nails are 1.25 inches long.If you use a thick material,you need to consider the depth of the nails. Can I use these nails to make a fence? Yes, these nails can be used to install wooden fences, hemlock siding as well as cement shakes. Nails are almost universal. Are these stainless steel? No. The material is galvanized, not easy to rust.