Common hollow anchor bolt consists of anchor rod, anchor head, grouting stopper, arch plate and nut. The anchor rod is made of seamless steel tube with high strength. Hex nut and hemispherical nut are available which are all machined. You can also choose square plate or round plate.
Common hollow anchor bolt has been widely used in tunneling, mining, slope stabilization and roof supporting of underground works, suitable for good or medium rock surroundings.
Specification:
GY25 | GY28 | GY32 | |
25 | 28 | 32 | |
Breaking load(KN) | ≥150-180 | ≥180-220 | ≥220-250 |
≥15 | ≥17 | ≥22 | |
42 | 42 | 51 | |
thread type | left hand | ||
standard length(m) | 1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0 | ||
length tolerance | ±2.5% | ||
Also available hot dip galvanized rods and accessories
Plate dimension: 120*120*4mm,120*120*6mm,150*150*6mm,150*150*8mm.
