Ideal For Internal Applications Such As Skirting Architrave Tongue And Groove Fixing With A T Head For A Concealed Finish. Manufactured From A2 Stainless Steel Offering Superior Corrosion Resistance Perfect For External And Hardwood Applications. Stainless Steel Must Be Used Where There Is Corrosive Environment And/Or The Base Material Has Inherent Corrosive Characteristics E.g. Green Oak.PTDTIMBSS1625