| Customization: | Available |
|---|---|
| After-sales Service: | Support |
| Warranty: | 5year |
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Self-Drilling Hollow Grouting Bolt 12mm & 25mm Industrial Ground/ Wall/ Sleeve Anchor for Mine & Underground Tunnels
Product Description
Product Name Hollow bolts / Hollow anchor / Self drill anchor / Grouting drill anchor bar / Rock anchor
Standards GB1499.2-2007 GB 50086-2015 TB/T 3209-2008
Grades Carbon 45#, sae1045, aisi1045
Alloy 40Cr, JIS SCr440, ASTM 5140, ISO 41Cr4
Outside diameter 25mm, 25.4mm, 28mm, 28.3mm, 30mm, 32mm, 38mm, 40mm, 51mm, 76mm or as per required
Tolerance for OD +0mm/-0.2mm
Length 1.5m, 2m, 3m, 4m, 5m, 6m, or as per clients request
Surface treatment Black / oiled /galvanized or as per required.
Heat treatment Annealed
Test Yield strength test, Tensile strength Test, Chemical composition
Accessories normal head, Alloy bit, expanding head, hex-nut, slurry seal, connector, plate
Packing Wrapped by anti-water plastic clothes, each bundle two hoisting belts
Application pre-support, radial support, slope stabilization, foundation support , soil nail, retaining wall, etc.
Application:
Railway System
Metro Project
Slope Stabilization
Hydroelectric Station
Infrastructure
Mining
Related products:
Tianjin Boerking steel Group
Specializing in the production of steel pipe deep processing products and tunnel, bridge engineering materials. The main products are grouting pipe, steel pipe, pipe shed pipe, leading small pipe, core pipe, sound pipe, oil casing, hollow anchor, soil anchor nail pipe, filter pipe, pipe, drilling pipe and other products. Customized according to different customer requirements, with high quality service, reliable product quality as the principle, product specifications are complete, affordable, fast delivery.
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