Place of Origin : Luoyang,China
Product Capacity : 10,000pcs Per Month
Payment Terms : T/T
Self-drilling hollow grouting bolt consists of anchor rod, steel drill bit with alloy head, anchor coupling(optional),arch plate, grouting stopper and hex nut. It has been widely used in tunneling, mining, slope stabilization, tunnel collapse treatment and roof supporting of underground works. It combines the functions drilling, grouting and anchoring into a whole and it is suitable for complicated geological conditions . Hollow anchor rod is made of high strength seamless tube.