Tunnel segment connecting bolts are special fasteners used to connect and fasten shield boring machine segments during tunnel excavation.
Kingrail Parts can provide a wide variety of tunnel segment bolts depending on the application such as segment size, shield tunneling machine diameter, etc. The tunnel segment bolts we can provide include:
* Double-ended straight segment bolts
* Double-ended arc tunnel segment bolts
* Hexagonal arc tunnel segment bolts
* Hexagonal head arc thread tunnel segment bolt segment bolt
* Hexagonal flange surface arc thread tunnel segment bolts
* Non-standard tunnel segment bolts
Segment Tunnel Arc Bolt Specification:
Dimension |
Arc Length mm |
Tensile Strength |
Surface Treatment |
M25~M39 |
480~880 |
4.6、4.8、5.6、5.8、8.8 |
Dacromet, Hot dip Galvanized |
Segment Tunnel Straight Bolt Specification:
Dimension |
Arc Length mm |
Tensile Strength |
Surface Treatment |
M25~M48 |
480~880 |
4.6、4.8、5.6、5.8、8.8 |
Dacromet, Hot dip Galvanized |
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