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High-Efficiency Rock Drilling Bit - Carbide Superior Alloy Steel Finish -
High-Quality B19 Drill Pipe for Coal Mining - M14*1.5 Thread, 16x6 Square Teeth -
Split Set Rock Bolt for Full-Length Anchoring – Trusted in Geotechnical -
Left-Handed Rock Bolts ASTM 615 Grade 60 Stee Q335-Q600 Materials -
Hollow Anchor Bolts for Rock Soil Stabilization Full-System Solutions with Plate Nut -
High-Tensile Hex Scaling Bar - HR or EPDM Blend Cover and SAR Rubber -
Threaded Steel Rock Bolts – Roof Anchoring for Mining and Tunnels -
Tungsten Carbide Mining Cutting Picks - C31HD C30 B47K Series
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Premium Carbon Steel Dome Mine Nuts - Sizes M16 - M50 for Coal Mine Safety -
High-Strength Forged Nuts - S45C Steel, HRC 28-32 | Custom for Mining Support Systems -
Mushroom Head Coal Mine Hex Nuts 4 Surface Finishes for Underground Safety -
Torque Nuts M16-M24, Plain Black Finishes for Precise Fastening in Machinery & Construction -
DIN 74361 Forged Dome Rock Nuts - Premium Coal Mining Nuts for Harsh Environments
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Industry News
As a leading fastener manufacturer and supplier in China, Tianlong Fastener Company experts share the latest news/technology/price trends/reviews in the fastener industry.
Tunnel bolt
2025-12-08
Tunnel segment bolt is used to provide transportation through underground tunnels by binding several posts and metal beams that are strong enough to build the tunnel’s frame. It is an essential component that is responsible for the overall integrity of the tunnel structure.
Tunnel bolt’s make transportation through undersea and underground tunnels possible by holding together the numerous metal beams and posts, which make up the tunnel’s frame. In short, this bolt is among the most vital, if not the most vital component for maintaining the entire tunnel’s structural integrity.
A tunnel bolt is classified under the type of bolts known as structural bolts, they can be produced in various grades, sizes, and load capacities, depending on their intended use. These structural bolts also come with uniform hexagonal heads to fit all types of wrenches, whether manual or automatic, box ended or open ended.
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Tianlong Company, Yongnian District, Handan, Hebei, China
Hebei Tianlong Fastener Co., Ltd
Contact: Sophia
Tel: +86 18630088852
Tel: +86 15132010868
E-mail: liudong@tl-fastener.com
E-mail: bolt@tl-fastener.com
Add: Tianlong Company, Yongnian District, Handan, Hebei, China
-
Railway fittings and Building fittings
-
-
-
High-Efficiency Rock Drilling Bit - Carbide Superior Alloy Steel Finish
-
High-Quality B19 Drill Pipe for Coal Mining - M14*1.5 Thread, 16x6 Square Teeth
-
Split Set Rock Bolt for Full-Length Anchoring – Trusted in Geotechnical
-
Left-Handed Rock Bolts ASTM 615 Grade 60 Stee Q335-Q600 Materials
-
Hollow Anchor Bolts for Rock Soil Stabilization Full-System Solutions with Plate Nut
-
High-Tensile Hex Scaling Bar - HR or EPDM Blend Cover and SAR Rubber
-
Threaded Steel Rock Bolts – Roof Anchoring for Mining and Tunnels
-
Tungsten Carbide Mining Cutting Picks - C31HD C30 B47K Series
-
-
-
Premium Carbon Steel Dome Mine Nuts - Sizes M16 - M50 for Coal Mine Safety
-
High-Strength Forged Nuts - S45C Steel, HRC 28-32 | Custom for Mining Support Systems
-
Mushroom Head Coal Mine Hex Nuts 4 Surface Finishes for Underground Safety
-
Torque Nuts M16-M24, Plain Black Finishes for Precise Fastening in Machinery & Construction
-
DIN 74361 Forged Dome Rock Nuts - Premium Coal Mining Nuts for Harsh Environments
-
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