Combo Bolt

Combo Bolt, or combination rock bolt, is a reinforcement product designed for support of mine roadways, tunnels and underground works. It is suitable for construction scenarios that require rapid initial support while maintaining long-term stability of surrounding rock. This bolt delivers immediate support force via mechanical anchoring. Combined with resin or cement-based grout, it achieves sufficient bonding reinforcement to enhance the overall supporting performance in fractured surrounding rock, layered rock mass and high-stress zones.Specifications, lengths, matching bearing plates, nuts, surface treatments and packaging methods are all customizable according to project drawings or on-site working conditions. It is ideal for bulk purchasing by mine engineering contractors, support material purchasers and underground project operators.