ONTON drill t thread high quality hollow drilling anchor reinforcing steel bar

About Self-drilling hollow bar bolts:

1. Single-use drill bits made of cast iron, which are available either hardened or with carbide inserts.

2. Hollow anchor bars made of steel(S460NH or on request), with a continuous outside thread.

3. Anchor couplings made of steel (or cast iron), with a continuous inside thread and optionally middle stops.

4. Anchor nuts mad of steel (or cast iron).

5. Anchor plates in different types and geometries.

ONTON are specialized in manufacturing self-drilling hollow bar anchors. Normal accessories also have in stock.

The thread is according to ISO 10208, special types are available. Please contact. 

Product Description:

• Self drilling Anchor

• R /T thread

• Customized  

• Simultaneous Drill and Grout Installation

• Combines both operations into a single construction cycle, enabling high rates of production

• Fully Threaded Rod Sections

• Continuous thread ensures that rods can be cut and coupled at any point

• No Casing Required

• Can be installed into loose or collapsing soils without the need for a temporary 

• It's widely used in many projects of the subway, high-speed rail ,railways, Soil Nails, Micropiles ,highways and hydropower stations, with good popularity and quality




Why choose us?














• SDA (IBO) is a kind of safety product.

• Safe products is the most important thing of engineering safety.

• We only produce safe products.

• Security is not just lip service.

  
  

  

Company Information:

• Established in the early 1990s

• The first and best manufacturer of SDA ( Self-drilling Anchor Rock Bolt ) in China

• ONTON Techology Co., Ltd. is the main compiling units of the standard named "Technical Terms of Hollow Anchor Bolts" 

• We participate in the ministry of railways Self-drilling Anchor Rock Bolt standards and almost all of the high-speed railway construction in china

• OEM on request

Certifications:






Customize service:







Custom process:






Packaging & Shipping:



Generally: 50 pcs/bunndle,outer with woven bags or as requirement.