... gradeSpecifications: (ThicknessxWidth)BWG28X3/8", 1/2", 5/8"(0.36mmx9.5mm, 12.7mm, 16.0mm)BWG27X3/8", 1/2", 5/8"(0.40mmx9.5mm, 12 ... .7mm, 16.0mm)BWG26X1/2", 5/8", 3/4"(0.45mmx12 ... 4"(0.50mmx12.7mm, 16.0mm, 19.0mm)BWG24x1/2", 5/8", 3/4"(0.55mmx12.7mm. 16.0mm, 19.0mm) ... BWG23x1/2", 5/8", 3/4"(0.60mmx12.7mm, 16.0mm, 19.0mm) ...