Curved Tunnel Bolt for Subway Construction

Curved Tunnel Bolt,also be called Tunnel Segment Bolt,Curved Tunnel Bolt,Tunnel Bolt,Spear Tunnel Bolt, are classified under the special type of bolts that are known as structural bolts which can be produced in various grades, sizes and load capacities depending on their specific use. These tunnel/segment bolts are utilized to make transportation through undersea and underground tunnels possible by binding together a number of metal beams and posts which make up the tunnel’s frame. Application  of Curved Tunnel Bolt To be used for connecting concrete ring when Tunneling Type  of Curved Tunnel Bolt There are straight one and curved one.The straight one should be used and assembly with plastic thread inserts. Photos of Curved Tunnel Bolt Technical Requirement of Curved Tunnel Bolt 1.Material :grade 4.6,5.8,6.8,8.8,10.9,12.9 2. finish  Plain,Dacroment,Hot Dip Galvanized Supply cit…

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