Construction-related Products

High tension hex bolts (M12 – M30) are important products used in constructing steel frame buildings and bridges.

• A high tension hex bolt special steel containing materials such as low carbon manganese, chromium and boron steel (developed by Sumitomo Metal Industries) is used to deliver stable mechanical product characteristics.
• Product quality consistency is ensured through the use of an integrated manufacturing method driven by new advanced bolt forming equipment (below 27mm diameter).
• Large diameter high tension hex bolts (M33 – M76) are also manufactured according to time tested hot forging technologies.
• Strict product lot management (based on JIS B1186) ensures stable quality in high volume manufacturing.
• Orders for standard products are quickly filled from plentiful stock.