Tanrimine Metal Support Co., Ltd.


Short Description:

Threadbar Bolt used in point anchored or fully encapsulated roof and rib bolting applications, with it’s ribbed surface profile, threadbar bolt can provide an enhancing resin mixing and load transfer. It is also widely used for ground support in mining, tunnel and slope projects

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TRM is a professional manufacturer of ground support products like split set system and related consumbles for Mining, Tunneling, Slope and other ground support application. We also worked together with our local steel mill to supply different grade of threadbar bolts or threadbar material which is special design and hot rolled by our local steel mill regarding the requirements of rock bolt used in the ground support projects, and we can supply different grade of material to reach the support demands depends on different strata conditions. With the no-longitudinal-rib design, the nut can screw on the threadbar very smoothly and quickly, and no need a machined screw at the end to fasten with nuts, meanwhile the thread all the way on the bar can help to mix the resin well to get a better support performance. We also supply all the comsumables fasten and support with the threadbar, beside of our normally nuts and washers, we also can make all the special required fasten accessories no matter how it is made, like by casting, forging or machining etc. We also worked tegether with forging factory to supply forged head threadbar bolt to make the support more easy. We welcome any inquires of threadbar bolt or other rock bolts, and we promise we will supply you the best solution for your problems in your ground support project.


● Different grade of threadbar available.
● Right hand and left hand available.
● Continuous thread bar allows stopping at any point of bolt.
● Washers and Nuts accessories available.
● Resin Capsule and Cartridge is available.
● Also used in reinforced concrete and civil construction applications etc.


16 18 20 22 25 Typically from 600 to 3000mm
Thread bar Grade Mechanical Properties (Min. in Mpa)
Yield Strength Tensile Strength Elongation
MG500 500 630 18%
Chemical Components
C Si Mn P S Cr Ni Cu
0.24-0.30 0.3-0.75 1.2-1.6 ≤0.04 ≤0.04 ≤0.10 ≤0.10 ≤0.15

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