Common hollow anchor bolt

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Common hollow anchor bolt
Posting date : Feb 26, 2014
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73-
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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: specification GY25 GY28 GY32 external diameter(mm) 25 28 32 Breaking load(KN) ≥150-180 ≥180-220 ≥220-250 Interior diameter(mm) ≥15 ≥17 ≥22 drilling diameter(mm) 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。

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