Min. Order : 100 Meters
≥5000 Meters

factory hot sale T103/78 hollow bar micro pile

Quick Details

Port: Nanjing
Payment Terms: L/C,T/T,Western Union
Supply Ability: 100000 Meter/Meters per Month
Brand Name: Union Max
Place of Origin: Jiangsu China
System of Measurement: Metric
Elongation A5: >=6%
steel grade: API 5CT Grade J55
Capacity: 1980kN
Color: Black
Material: Steel
Model Number: T103/78
nominal weight: 24.2kg/M
Diameter: 5/16IN
Package Preview: https://sc04.alicdn.com/kf/Hca23c7db1b0d41e79be26095e705b6b0W.png_640x640.png,https://sc04.alicdn.com/kf/Hc8386b90112a4d71a2108b38f2389259b.png_640x640.png
Jiangsu Union Max Machinery & Equipment Co., Ltd.
Manufacturer, Trading Company
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Product Description

Union Max Self Drilling Anchor Bolt system is a fully threaded hollow core bar that is initially a server as a drill rod with a lost bit, and later, once grouted in, it becomes an anchor tendon that can be stressed and locked off with a nut.

Union Max Self Drilling Anchor Bolt system provides the optimal solutions for nailing, bolting, micro piling and as ground anchors in difficult ground and rock conditions.

 T-Thread Self Drilling Micro Piles Hollow Bar


Bar Size T103/83 T103/78 T103/51 T130/92 T130/60 T135/75
Nominal outer diameter(mm) 103 103 103 130 130 135
Nominal Inner diameter(mm) 83 79 52 94 60 82
Cross section area of bar(mm2) 2,520.00 3,080.00 5,510.00 6,180.00 11,760.00 8,400.00
Ultimate load(kN) 1,600.00 1,980.00 3,660.00 4,003.00 7,940.00 5,400.00
Yield load(kN) 1,280.00 1,590.00 2,670.00 3,203.00 5,250.00 4,320.00
Ultimate strength(N/mm2) 630 640 660 640 670 640
Yield strength(N/mm2) 500 510 480 510 440 510
Elongation A5(%) ≥6.00
E Modulus (GPa) 192 190 190 190 190 190
Nominal weight (kg/m) 10.2 24.2 43.3 48.5 92.3 65.9
Steel grade API 5CT Grade J55, similar to 28Mn6 of EN10083-1
Steel grade ( KSI) 74 75 71 75 65 75
Hardness(HB) 240-310


 sda detail 750

applications SDA 750

Company Profile

Expansion Wall Shell Anchor

Located in Nanjing Jiangning economic and technological development zone, Jiangsu Union-Max Machinery Equipment Co.,Ltd is a company specializing in development, research, production and sale of construction and mining systems, and prescion machinery parts. We are the core supplier of many world-famous companies.


Our company covers an area of 35500 square meters and over 15000 square meters  factory building and 4000 square meters office and laboratory building. Now we have several large-scale automated production lines, various types of CNC machining equipment and a series of own developed special equipment. All of these make up a stable production capacity and a good technical research and development platform.


The Union Max Self Drilling Anchor /Hollow Bar Systems provide the optimal solutions for nailing, bolting, micro piling and as ground anchors under very difficult ground and rock conditions. These products are highly accepted in the European and the United States`s market, and we enjoy an excellent reputation in the world.


The Union Max construction product line includes formwork systems, post tension and prestressing systems and hardware.

Union Max also provides manufacturing services for the automobile industry and other mechanical businesses. With its well maintained and ISO/TS 16949 and ISO 9001 certified quality system, Union Max keeps on delivering high quality goods and services, and secured several very famous players in the automobile and mechanical business as its customers.


Union Max aims primarily for continued growth through the uncompromising implementation of its philosophy. Union Max visualize a future wherein it enjoys the reputation of being a preferred supplier that would always deliver products beyond customer expectations.


Add: 987# east Qingshuiting Road, Jiangning Economic and Technical Development Zone, Nanjing, China.



Our Certificates

Expansion Wall Shell Anchor

Packaging & Shipping

Expansion Wall Shell Anchor


1. What can I get the price?

A We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please tell us in your email so that we will regard you inquiry priority.


2. What about the lead time for the mass production?

A Honestly, it depends on the order quantity and the season you place the order.


3. Can I get a discount?

Yes, for the order quantity more than *** pcs, please contact us to get the best price.


4. Do you inspect the finished products?

Yes, each step of production and finished products will be came out inspection by QC department before shipping.


5. How can I get the sample to check your quality?

A After price confirmation, you can require for samples to check our products quality. If you just need a blank sample to check the design and quality. We will provide you sample for free as long as you afford the express freight.