Ideal for internal applications such as skirting, architrave, tongue and groove fixing with a T head for a concealed finish. Straight collation T Head to give a concealed fixing Shank Design: Low penetration resistance into all materials" Gauge: 18 Length mm: 50 Head Type: T Head Finish: Galvanised Material: Carbon Steel Nails Per Strip: 100 Fuel Cell Quantity: N/A Collation Angle: StraightSize 18g x 50 - 5000 Pieces