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Common Hollow Rock Bolt

Common Hollow Rock Bolt

Payment Terms : T/T
Place of Origin : Luoyang,
Trade Terms : FOB
Brand Name : GY
Main Markets : Global
Category : Furniture Bolts
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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.
Brief description:
1. Common hollow anchor bolt
2. Made of seamless steel tube
3. Hollow design
4. High strength
5. Widely used in tunneling, mining, roof suppoting of underground works, etc&
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specification GY25GY28GY32
external  diameter(mm)252832
Breaking  load(KN)   ‰¥ 150-180‰¥ 180-220‰¥ 220-250
Interior  diameter(mm)‰¥ 15‰¥ 17‰¥ 22
drilling  diameter(mm)424251
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%

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