FirmaHold collated nails are designed for the fixing of timber and imber framing using various proprietary types of pneumatic and cordless application tools. FirmaHold collated nails are manufactured to conform with EN792-13:2000 7.2.1a and comply with the requirements of all major tool manufacturers. FirmaHold nails are available in a variety of finishes. Bright - Service Class 1 with no rust protection, FirmaGalv - Service Class 1 for light duty rust protection, FirmaGalv Plus - Service Class 2 for medium duty rust protection, Hot Dipped Galvanised (HDGV) - Service Class 3 for heavy duty rust protection & Stainless Steel - Service Class 3 for external and heavy rust protection. Stainless steel must be used where there is a corrosive environment and/or where the base material has inherent corrosive characteristics, eg: green oak or cedar.