EN
RUEach fitting is measured against standard dimensions using precision tools to ensure accurate pipe compatibility, secure connections, and smooth installation without welding.
1. Higher Standard Certification
2. Perfect Production Solution
3. More Corrosion Resistant
4. Comprehensive After Service
5. Wide-ranging Application
HULK Metal manufactures high-quality Three Socket Tee (Long Tee) Structural Pipe Fittings that combine strength, precision, and reliability. Made from malleable or ductile iron with customizable finishes such as galvanizing or powder coating, these fittings are ideal for both industrial and DIY applications. Our fittings ensure secure pipe connections, faster installation, and compliance with international standards.
The Three Socket Tee Structural Pipe Fitting comes in multiple sizes to fit tubes ranging from 26.9mm to 60.3mm, with customizable options for other dimensions. HULK Metal offers a choice of materials such as malleable iron, ductile iron, or aluminum, with surface treatments including galvanizing, powder coating, or tailored finishes. This flexibility ensures suitability for a wide range of environments, from industrial projects to outdoor guardrail systems.
| Basic Info Table of Fittings | |||||||||||
 |  | ||||||||||
| Name | 104 Three Socket Tee | ||||||||||
| Material | Malleable Iron / Ductile Iron | ||||||||||
| Surface | Hot-dip Galvanized / Double Galvanized / Powder Coating / Raw Black | ||||||||||
| Color | Refer To Pantone Color Card | ||||||||||
| Pipe Sizes Comparison | Surface Finishing & Code | Dimensions(mm) | |||||||||
| Size | DN | in | mm | Hot-dip Galvanized | Double Galvanized | Powder Coating | Raw Black | a | b | C | D |
| A | 20 | 3/4" | 26.9 | HM-G-104-A | HM-D-104-A | HM-PC-104-A | HM-B-104-A | 41 | 82 | ||
| B | 25 | 1" | 33.7 | HM-G-104-B | HM-D-104-B | HM-PC-104-B | HM-B-104-B | 46 | 92 | ||
| C | 32 | 5/4" | 42.4 | HM-G-104-C | HM-D-104-C | HM-PC-104-C | HM-B-104-C | 60 | 120 | ||
| D | 40 | 3/2" | 48.3 | HM-G-104-D | HM-D-104-D | HM-PC-104-D | HM-B-104-D | 68 | 136 | ||
| E | 50 | 2" | 60.3 | HM-G-104-E | HM-D-104-E | HM-PC-104-E | HM-B-104-E | 84 | 168 | ||
| Pipe Info | |||
 | |||
| Material | Carbon Steel | ||
| Surface | Hot Galvanized / Powder Coating | ||
| Color | Refer To Pantone Color Card | ||
| Pipe Sizes Comparison | |||
| Size | Inner Diameter | Outer Diameter | |
| Nominal (DN) | in | mm | |
| T | 15 | 1/2" | 21.3 |
| A | 20 | 3/4" | 26.9 |
| B | 25 | 1" | 33.7 |
| C | 32 | 5/4" | 42.4 |
| D | 40 | 3/2" | 48.3 |
| E | 50 | 2" | 60.3 |
| Color only refers to the color of the powder coating. The powder coating of the pipe will allow for color tolerance, Kindly contact us for details. The quality of the tube will meet the usage requirements in most scenarios. For special scenarios, Kindly contact us for performance testing. | |||
Three Socket Tee, or Long Tee, is widely used in guardrail, handrail, and modular frameworks for connecting vertical and horizontal pipes securely. With three sockets and integrated hex bolts, it allows for easy assembly without welding. Available in multiple finishes and materials, it offers durability and corrosion resistance. HULK Metal ensures each fitting meets high production standards, providing reliable structural support for industrial, commercial, and DIY projects.
The Three Socket Tee, also known as Long Tee, is designed to connect three pipes on the same plane, forming a "T" shape. It ensures stable structural connections and supports both horizontal and vertical assembly needs effectively.
The Three Socket Tee connects one upright with two horizontal rails, ensuring safety, strength, and compliance with safety standards.
Perfect for modular projects, it provides vertical sockets to join two pipes and create a stable framework.
Common in warehouse racks, platforms, and barrier systems, offering durability under heavy usage.
Widely used in display stands, furniture frameworks, and construction scaffolds due to its versatility and ease of installation.
It has three sockets, with two used for connecting horizontal pipes and the third for a vertical pipe. Each socket is equipped with an internal hex bolt to firmly secure the pipes without welding.
Pipes are inserted into each socket and tightened with internal hex bolts. This creates a secure, stable, and adjustable connection that can be quickly assembled or disassembled without special tools or welding.
The Three Socket Tee can be produced in cast iron, stainless steel, or aluminum, offering different performance, durability, and applications.
Available in malleable iron and ductile iron, cast iron Three Socket Tees provide excellent strength and cost-effectiveness. Malleable iron ensures precision and toughness, while ductile iron offers higher impact resistance, making it suitable for demanding structural and outdoor environments.
Stainless steel versions provide superior corrosion resistance and durability, especially in harsh or marine environments. With a sleek finish, they are often chosen for commercial projects requiring aesthetics, hygiene, and long-term strength without frequent maintenance or additional surface treatments.
Aluminum Three Socket Tees are lightweight yet strong, ideal for temporary structures and modular systems. They offer excellent resistance to oxidation and are easier to handle, transport, and install, making them popular in DIY applications and lightweight commercial frameworks.
Multiple surface treatments are available to match different environments, enhancing corrosion resistance, longevity, and appearance based on project requirements.
Hot-dip galvanizing provides a thick zinc coating, creating strong corrosion resistance for long-term outdoor use. It is widely applied in guardrail and industrial frameworks exposed to harsh environments. The process ensures complete coverage, protecting the fitting against rust, scratches, and impacts, making it highly reliable for heavy-duty applications.
This process adds electro-galvanizing on top of hot-dip galvanizing, forming an additional protective layer. It enhances resistance against corrosion and extends service life even in highly humid or coastal environments. The double protection ensures uniform coating, improved durability, and better appearance, making it suitable for premium projects requiring extra longevity.
Powder coating offers both protection and aesthetics by applying a uniform, durable finish available in customizable colors. This treatment enhances corrosion and wear resistance while giving fittings an attractive look. It is widely used in commercial or decorative projects where both appearance and performance are equally important.
If you want to learn more about other fittings, you can click structural pipe fittings to explore more options.
Confirm that the size of the Three Socket Tee matches the pipe system's requirements.
Ensure the surface treatment is suitable for the usage environment.
Check compliance with local installation and safety standards.
A reliable supplier must have strong production capacity and extensive industry experience. HULK Metal has advanced casting, machining, and surface treatment equipment, supported by over 16 years of production expertise. Choosing such a supplier ensures consistent quality, faster delivery times, and the ability to handle large-scale bulk orders.
Check whether the supplier has a comprehensive quality inspection system and certifications such as ISO9001, CE, and TUV. HULK Metal follows strict quality standards, conducting dimensional, functional, and surface inspections. A certified quality management system helps ensure that each Three Socket Tee meets international requirements and project-specific safety standards.
A suitable supplier should offer customized solutions for materials, surface treatments, sizes, and packaging. HULK Metal provides tailored production based on your project needs, ensuring the most practical and cost-effective solutions. Customization capability allows you to build unique guardrail, handrail, or industrial structures that fully match your requirements.
Evaluate whether the supplier offers after-sales services such as product consultation, technical guidance, and return/exchange policies. HULK Metal provides a complete after-service system to ensure customer satisfaction. From delivery tracking to handling quality issues, our after-sales team helps clients reduce risks, save time, and achieve smoother project execution.
International trading requires experience with logistics, export documentation, and overseas customer communication. HULK Metal has cooperated with clients in more than 50 countries and understands diverse market requirements. This global supply experience ensures more efficient order handling, transparent communication, and smoother delivery to your location with fewer delays.
A trustworthy supplier must provide transparent, competitive pricing. HULK Metal owns its production factory, which reduces intermediate costs and provides real-time quotations. We guarantee that while maintaining the same high quality, our prices are more competitive, helping clients lower procurement costs and achieve better value for bulk purchasing.
A: A fully equipped quality inspection center, rigorous testing procedures, and a complete quality assurance system guarantee each fitting's consistency and durability.
A: It depends on raw materials, size, surface treatment, and order quantity. As a factory, we provide accurate, real-time quotations.
A: All prices are based on high quality. Larger order quantities bring better prices. With equal quality, our price is always more competitive.
A: MOQ varies depending on size and material. You can contact us anytime for a personalized quotation and detailed procurement advice.
A: Generally 30 days, depending on order size and requirements. For large orders, efficiency improves, and total time rarely exceeds 45 days.
A: Hot-dip Galvanizing, Double-Coating Galvanizing, and Powder Coating in customized colors (MOQ required). All finishes ensure corrosion resistance.
A: We supply clients in over 50 countries across Europe, North America, South America, Africa, and Southeast Asia, with strong logistics support.
A: Cast Iron, Stainless Steel, and Aluminum. Full molds exist for cast iron; other materials require OEM mold-making.
A: We provide standard sizes from 26.9mm to 60.3mm, with customizable options available to match unique project needs and international standards.
A: We accept flexible payment methods such as T/T, L/C, and support FOB, CIF, and EXW delivery terms to meet client requirements.
We carefully confirm your requirements for surface treatment, quantity, packaging, delivery time, and payment terms. This ensures that every stage of production is aligned with your project needs, helping you receive the most practical and cost-effective solution.
High-quality raw materials are procured from trusted suppliers. Each batch undergoes strict inspection for chemical composition, strength, and consistency. Only materials that meet international standards are allowed into production, ensuring superior durability and performance of the final Three Socket Tee products.
We follow a systematic production process from casting to finishing. Each stage is monitored to maintain precision and consistency. With advanced equipment and strict process control, HULK Metal guarantees fittings that meet dimensional accuracy and high mechanical strength requirements.
The Three Socket Tee parts are cast using advanced techniques to achieve uniform density and strength. Our foundry ensures consistent quality by controlling temperature, mold design, and cooling rates, producing fittings that are strong, durable, and suitable for industrial applications.
After casting, fittings are machined and finished to achieve smooth surfaces and precise dimensions. Burrs and imperfections are removed to ensure safe handling and accurate pipe insertion, creating a product that is both functional and easy to install.
Dimensional checks, surface inspections, and mechanical tests are conducted during production. Each fitting is measured against strict tolerances, ensuring structural integrity. Non-conforming parts are rejected immediately, preventing quality issues from reaching customers and ensuring product reliability.
Fittings undergo hot-dip galvanizing, double-coating galvanizing, or powder coating based on client requirements. Each process is carefully controlled to ensure uniform thickness, strong adhesion, and enhanced corrosion resistance, meeting the needs of different application environments.
Final inspections are conducted on treated fittings. Tests include coating thickness measurement, adhesion checks, and appearance evaluation. This step ensures the surface treatment meets standards for durability and aesthetics before packaging and delivery.
Fittings are packaged according to customer specifications using pallets, cartons, or customized packaging. We ensure safe transport to prevent damage during shipment. With efficient logistics partnerships, HULK Metal delivers products faster and with reliable tracking information.
After receiving the goods, clients can inspect quality and quantity. Any product with quality issues can be returned or exchanged. HULK Metal provides restocking services, technical consultation, and responsive after-sales support to ensure customers can purchase and use confidently.
HULK Metal applies strict quality control throughout the entire production process of Three Socket Tee fittings. From raw material inspection to final packaging, every step follows ISO9001 and international standards. We use advanced measuring equipment and testing systems to ensure dimensional accuracy, reliable performance, and durable surface finishes. Our multi-level quality checks guarantee that each product meets customer requirements for safety, durability, and long-term use.
Each fitting is measured against standard dimensions using precision tools to ensure accurate pipe compatibility, secure connections, and smooth installation without welding.
Before delivery, each batch is inspected for surface quality, treatment consistency, and compliance with customer requirements.
All packaged goods are checked against order details to ensure accurate quantities, correct labeling, and safe shipment preparation.
Products undergo functional testing to verify structural strength, load-bearing capacity, and connection reliability under actual application conditions.
HULK Metal owns a modernized factory equipped with advanced casting, machining, and surface treatment facilities. Every stage of production is carefully monitored under strict ISO9001 management standards. With an integrated QC center and professional workforce, we ensure consistent product quality, faster delivery, and large-scale production capacity. Our factory setup allows us to handle bulk orders efficiently while providing flexible customization options for global clients.
Choosing HULK Metal means selecting a partner that values quality, efficiency, and service. Our Three Socket Tee fittings are manufactured under strict ISO standards with advanced equipment and processes. We provide complete production solutions, excellent corrosion resistance, and competitive pricing. With strong after-sales support, global supply experience, and professional technical guidance, HULK Metal ensures that every customer enjoys reliable products, efficient procurement, and added value beyond manufacturing.
In this section, you can explore related articles about the Three Socket Tee Structural Pipe Fitting, including guides, technical insights, and application tips. Each article comes with an image, title, and detailed description to help you understand the product better. Whether you are interested in installation methods, material comparisons, or industry applications, these articles provide valuable knowledge and professional insights that will support your purchasing and usage decisions.
Besides the Three Socket Tee, HULK Metal manufactures a wide range of structural pipe fittings, including Single Socket Tee, Variable Elbow, Reducing Short Tee, Side Palm Fixing, and Adjustable Angle Two Socket Cross. Each fitting is available in different materials, finishes, and sizes to meet varied project requirements. In this section, you can view images, titles, and descriptions of these fittings, helping you find the most suitable solutions for your structural framework.
Our handrail bracket structural pipe fittings have multi-type surface treatments to prevent corrosion, precise dimensions, and a strong load-bearing capacity. They provide a longer service life and a more secure installation, making them perfect for outdoor safety rails, balconies, and staircases.
The Internal Swivel Tee Structural Pipe Fitting allows a 360 deg rotation around the connection point, making it ideal for angled rail systems. Manufactured from malleable iron or ductile iron with multiple finish options, it provides stronger performance and longer service life.
The Three Socket Angle Tee Structural Pipe Fitting is an essential component for angled guardrails and handrails. It connects two top rails to an upright post with adjustable angles from 0 to 11 degrees, ensuring both safety and flexibility.
The Slope Short Tee is specially designed for guardrail and handrail systems with slopes from 0 to 11 degrees. Its internal socket allows for the precise adjustment and secure fixing of uprights using hex bolts.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
HULK Metal supplies base flange structural pipe fittings made of durable materials with multiple surface finishes. They are designed for stronger pipe connections and longer service life. Our modern factory, professional team, and strict inspection ensure higher-standard products for your projects.
HULK Metal manufactures high-standard railing base flange structural pipe fittings with ISO 9001 certification. Our fittings feature precise dimensions, reliable strength, and multiple surface treatments, ensuring durability and excellent performance in both indoor and outdoor applications for handrail and guardrail systems.
The Short Swivel Tee Structural Pipe Fitting is widely used in handrail and guardrail systems where angled connections are required. Manufactured by HULK Metal with strict ISO 9001 standards, it offers strength, flexibility, and long service life.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
33.7/26.9
Customizable
The Swivel Base Flange is engineered to secure pipes to walls with adjustable angles from 0° to 180°. Its modular design ensures easy assembly, reliable stability, and compatibility with multiple pipe sizes and materials.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
33.7
42.4
48.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
48.3/42.4
60.3
21.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
21.3
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
The 90 Degree Two Socket Tee offers two perpendicular sockets for secure pipe connections. It is engineered to provide precise alignment and exceptional strength in guardrails, handrails, fencing, and DIY structures.
Three Socket Cross Structural Pipe Fittings connect vertical uprights with three perpendicular horizontal pipes, offering robust support for fencing, storage racks, and DIY systems. Their versatile design allows easy installation and configuration, ensuring durability and stability in multiple applications.
HULK Metal's Clamp on Tee Structural Pipe Fittings are engineered for secure, easy installation on existing systems. Made from high-quality malleable or ductile iron, they support durable, stable connections for guardrails, handrails, and DIY structures.
Two Socket Cross Structural Pipe Fittings are designed to connect upright pipes with two perpendicular pipes in the same plane. Manufactured from high-quality cast iron, stainless steel, or aluminum, these fittings undergo strict inspection and advanced surface treatment
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
Customizable
HULK Metal manufactures high-quality Three Socket Tee (Long Tee) Structural Pipe Fittings that combine strength, precision, and reliability. Made from malleable or ductile iron with customizable finishes such as galvanizing or powder coating, these fittings are ideal for both industrial and DIY applications.
The side outlet elbow, also called a 3-way elbow, is designed to connect three pipes at 90° angles. It provides strength and stability in guardrails, handrails, and cube-like structures.
HULK Metal's Variable Swivel Elbow is engineered for versatile pipe-joining applications. With angles ranging from 73° to 287°, it provides maximum flexibility for complex structures.
HULK Metal's Reducing Short Tee Structural Pipe Fitting is engineered to provide a secure vertical pipe connection with different diameters, ideal for mid-rails or guardrail top rails.
The Single Socket Tee Structural Pipe Fitting, also known as Short Tee, is widely used in railing systems, guardrails, and DIY structures. It allows one pipe to connect securely at a right angle to another, forming a stable "T" connection.
The Single Lugged Bracket Structural Pipe Fitting is a reliable solution for fixing pipes onto walls or panels where limited space prevents double lug use.
The Vertical Railing Side Support Structural Pipe Fitting is designed to provide strong and stable support for railing systems. Manufactured with malleable iron or ductile iron, and available in multiple surface treatments such as hot-dip galvanizing or powder coating, these fittings ensure long-term durability.
The Cradle Clamp Structural Pipe Fitting is designed to fasten pipe rails securely to uprights. Its open clamp structure allows quick installation, while inner hex bolts ensure reliable stability.
Horizontal Railing Side Support Structural Pipe Fittings are designed to fasten railing uprights firmly against walls or side structures.
The Adjustable Short Tee is engineered to connect pipes at variable angles from 30 deg to 60 deg. Its durable structure, simple installation, and flexible design make it suitable for guardrail and handrail systems.
The Single Swivel Combination is formed by joining two swivel fittings, making it ideal for environments requiring flexible angle adjustments. While it cannot independently bear lateral loads, it becomes effective when used together with other fittings.
The Add on Short Tee Structural Pipe Fitting is a hinged socket fitting that allows vertical connections to existing pipe systems without dismantling.
HULK Metal Variable Elbow Structural Pipe Fitting is designed to create secure and adjustable angled connections between pipes. With a strong structure and reliable locking bolts, it delivers stability and precision.
HULK Metal Adjustable Angle Two Socket Cross Structural Pipe Fitting provides a strong and flexible connection between uprights and rails. Designed for rail systems with slopes from 45° to 90°, it is widely used in stairways, handrails, and ramps.
The Galv Ground Socket Structural Pipe Fitting is designed to provide secure support for uprights in diverse ground conditions. Made of high-strength malleable or ductile iron, it ensures long-term stability and durability.
The Side Palm Fixing Structural Pipe Fitting is engineered to provide a solid and secure connection for railing uprights against walls, stairs, or ramps. Its three-lug design with reinforced sockets improves stability and load capacity.
The Double Lugged Bracket Structural Pipe Fitting is engineered to mount pipes flush against flat walls or panels. Featuring two lugs with fixing holes, it supports various screw or chemical fixing methods. Its socket with hex bolts firmly secures the pipe in place.
The Double Male Swivel Structural Pipe Fitting is designed for flexible joint connections and works seamlessly with single swivel female parts to form a stable structure.
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
60.3
Customizable
Hook structural pipe fittings provide temporary mounting points on pipes. Designed for horizontal and vertical installation, they ensure user safety with rounded heads and secure locking via hex bolts. This solution is suitable only for incomplete systems.
The slope railing base flange pipe fitting is designed to secure inclined uprights to the ground with adjustable angles. Manufactured with strict quality control, it offers multiple surface treatments, ensuring strength, corrosion resistance, and suitability for diverse railing and structural applications.
Our gate hinge pipe fittings combine robust materials with precision casting to create dependable connections for gates. With multiple surface treatments and sizes available, they meet diverse installation requirements, deliver excellent corrosion resistance, and provide a secure, smooth rotational function.
Gate Eye Pipe Fittings provide a reliable hinge connection for gates and handrail systems. Made from strong cast iron or flexible ductile iron, they come with different surface finishes, providing great performance, a longer lifespan, and making them suitable for many construction and industrial uses.
The 119A Galvanized Railing Connectors Add-on Two Socket Cross is different from the 119 type in that it can add two pipes to an already completed system.
119 Galvanized Safety Railing Fittings Two Socket Cross is used to add two pipes on the same plane to form a cross structure for a specific position of a pipe.
116A Galvanized Pipe Guardrail Fittings Add On Side-outlet Tee is used to add two perpendicular rails to an already assembled handrail or guardrail uprights, or to add two perpendicular pipes to an assembled DIY structure such as a cube or cuboid.
101 Reducing Short Tee Galvanized Pipe Railing Fittings are often used. HULK Metal is a well-known supplier in China. We look forward to your inquiry.
No. 101 galvanized pipe handrail fittings are used to connect two pipes into a "T" shape. It is also called Short Tee. One pipe is inserted into the socket and the other one passes through the channel above.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
104 galvanized slip-on pipe fittings long tee can be used to add two horizontal pipes to the guardrail or handrail uprights, or to connect two pipes in a DIY structure and add a vertical pipe to them.
Safety rail fittings are slip-on pipe fittings for safety railings. They can be quickly installed to complete a system, are easy to operate, and have a longer life and better performance. The 125R reducing 90-degree elbow is a special and uncommon fitting used to connect two pipes of different thicknesses.
We can provide 21.3 mm to 60.3 mm size, that is, 1/2" to 2". We have a full range of molds, can complete each order faster.
124 type Galvanized Key Clamp Fitting uses 3 types of hot-dip galvanizing, double coating, and powder coating. We can provide 33.7mm, 42.4mm and 48.3mm diameters. We integrate a complete supply chain and a professional team to provide better products and services. Looking forward to your inquiry.
123 Type Galvanized Railing Fittings is a kind of elbow that can connect two pipes with an angle of 40° to 70°. We can provide two calibers: 42.4mm and 48.3mm. We will strictly implement ISO9001 to manage the supply chain and provide better products and services.
We integrated a complete supply chain, passed ISO 9001 certification, formed a professional technical team and produced a full range models of the galvanized pipe connector fittings to provide the best services and products. Looking forward your inquiry.
As a top metalworking service provider, we want to let every customer experience a sense of security in purchasing, sales, etc., and better realize their value through continuously defining new standards for products and services.
Room 901, Intelligent Park A Building, No. 86 ChunYang Rd, Qingdao, China 266109
© 2025 HULK Metal All Rights Reserved. All Rights Reserved.
