Steel Tubes India is the largest manufacturer Of ASTM A193 Fasteners range and stock in all sizes of bolts, nuts, washers, hex socket screws, metal thread screws, self-tapping wood screws and security products in metric, imperial and in all grades. Although, this material is often available in national course (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch. Steel Tubes India has been manufacturing ASTM A193M Bolts ASTM A193 Head Hex Bolts and custom fasteners as requirement of customer since 1968. With 120,000 square feet of manufacturing space we have the ability to supply large scale heavy construction projects as well as small same day specials.
https://www.stindia.co.in/astm-grade-astm-material-astm-standards/astm-bolts/astm-a193-bolts.html
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