4 series of brad nails used for upholstery, furniture manufacture, board, slat embedding, composing furniture. F brad nails(with head, or without head) Gauge: 18 Width: 1.25mm Thickness: 1.00mm Head: 2.00mm*1.25mm Length: 5mm-50mm Material: Zinc paling wire Copper wire Stainless wire Steel wire T brad nails (with head, or without head) Gauge: 16 Width: 1.6mm Thickness: 1.40mm Head: 3.00mm*1.60mm Length: 16mm--64mm Material: Zinc plating wire Copper wire Stainless wire Steel wire St/ht brad nails Gauge: 13 Diameter: 2.20mm Head: 7.00mm*2.20mm Length: 15mm--64mm Material: Steel wire F-st brad nails Gauge: 15 Diameter: 1.83mm Head: 3.00mm*1.83mm Length: 15mm--50mm Material: Steel wire