product name:- 2h heavy hex nut product description:- the wide range of products of heavy hex nut....... we have marked a distinct and dynamic position in the market by manufacturing, exporting and trading a quality assured array of heavy hex nut.. specification:-as per a-194, a563. sizes:- m12 to m100 & 1/2" to 2" material:- high tensile grade:- 2h finish:- natural finished (self finish / plain color), auto black, white zinc, yellow zinc, hot dip galvanised, zinc finish (galvanised), zinc phosphating.