hot dip galvanized bolt Size: 1/2inch*6inch,8inch,10inch,12inch,14inch,16inch,etc. Material: Q235B steel Coating: galvanizi hot dip galvanized boltSize: 1/2inch*6inch,8inch,10inch,12inch,14inch,16inch,18inchMaterial: Q235B steelCoating: Including galvanized and plain