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Hollow Self-drilling Anchor Bolt
Hollow Self-drilling Anchor Bolt
Supplier Info
[China Supplier]
Contact Person : Mr. Gao Robin
Tel : 86-635-8888909
Fax : 86-635-8886535
Product Detail
Hollow Self-drilling Anchor Bolt :

Applications :The product is mainly used for weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. In forepoling of the tunnel and a variety of slope retaining in the supporting work well to reach the ideal support effect.For permanent anchor bolt(soil nails) applications, we provide two practical means of extending the life of the nail in the critical area at the soil / air interface: the one is Hot-dip Galvanizing (according to BS EN 1461),the other one is Hot-dip Galvanizing+powder coating.Features :1. Self-drilling anchor bolt have two performances :one is drilling ,the other is grouting. The anchor bolt have these features: reliable, efficient and convenient construction.2. In a variety of complex formation of the anchoring effect are excellent.3. It emphasized that close to the rock surface of flexible support systems to better play to their strength of rock, restraining deformation of surrounding rock, restoration of surrounding rock stress balance.

II.Products specifications and types

 Outside diameter Average internal diameter Ultimate load capacity Yield load capacity Average tensile strength Rm Average yield strength Rp0,2 TheoricaI weight Thread type
 mmmmKnKnN/mm2N/mm2kg/m 
R25N25132001507205602.4ISO 10208
R32N3218.52802307205603.2
R32S32153602807405604.0
R32L32202201607405602.9
R38N38195004007405605.8
R51L51365504507405606.8
R51N51338006307405607.8ISO 1720
T76N76511600120074056015.6
T76S76451900160074056020.0
T30/1130113202607405603.2
T40/1640166605257405607.2
Delivery lengths1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m
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