EN
RUEach fitting is measured with precision instruments to ensure pipe compatibility. Dimensions, including inner and outer diameters, socket depth, and overall angles, are checked to meet project specifications and prevent misalignment during assembly.
1.Double Coating, Hot- Galvanized, Powder Coating
2.Size: 33.7mm, 42.4mm, 48.3mm, 1", 1 1/4", 1 1/2"
3.ISO 9001 Certified
4.Various Key Clamp Fittings Available
5.QA Service
124 type galvanized key clamp fitting can be used in any scenario where two pipes need to be formed into 125° to 178°, and it is very easy to install. We can achieve lower prices and faster delivery, and look forward to your inquiry.
The 124 Type Galvanized Key Clamp Fitting is manufactured from malleable or ductile iron and finished with hot-dip galvanizing, double galvanizing, or powder coating for enhanced durability. Available in 33.7mm, 42.4mm, and 48.3mm sizes, it ensures compatibility with global standard pipes. Each fitting complies with ISO 9001 quality standards, offering excellent corrosion resistance and reliable performance for guardrail, handrail, and DIY structural applications.
| 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. | |||
| Basic Info Table of Fittings | |||||||||||
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| Name | 124 Type Galvanized Key Clamp Fitting | ||||||||||
| 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 |
| B | 25 | 1" | 33.7 | HM-G-124-B | HM-D-124-B | HM-PC-124-B | HM-B-124-B | 40 | |||
| C | 32 | 5/4" | 42.4 | HM-G-124-C | HM-D-124-C | HM-PC-124-C | HM-B-124-C | 47.5 | |||
| D | 40 | 3/2" | 48.3 | HM-G-124-D | HM-D-124-D | HM-PC-124-D | HM-B-124-D | 44 | |||
The 124 Type Galvanized Key Clamp Fitting is designed to connect pipes at adjustable angles between 125° and 178°, making it ideal for handrails, guardrails, and DIY structures. Produced from ductile or malleable cast iron, each fitting is sand-cast, precision-machined, and finished with durable coatings. Its robust structure, simple installation, and ISO 9001 certified quality ensure long-lasting performance and wide adaptability in diverse project environments.
124 Elbow is a special type of Key Clamp fittings, it is designed for the guardrail system when the angle between the uprights and the handrail is between 125° and 178°. Later, it was extended to the guardrail system to connect two rails at an angle to each other, as well as many DIY structures.
Handrail system with an inclination angle of 25° to 80°: used to connect the uprights below and the upward handrail pipe. Such as wheelchair access, home stairs, climbing guardrails, etc.
When an angled site needs to be enclosed, the 124 Type Galvanized Key Clamp Fitting can be used to connect two rails with an angle between 125° and 178°. Such as seaside guardrails, platform guardrails, roofs, etc.
It can be used to build outdoor recreational facilities and fitness facilities. Indoor furnishings, brackets, tables and chairs, etc.
It has two sockets, each with an Allen Bolt. The middle part has a larger inner cavity, so that the pipe can adjust its angle inside, and the mouths of the two sockets fit the outer diameter of the pipe.
In most cases, it can only be used in a system under construction. If it needs to be installed in a completed system, the feasibility of this idea needs to be carefully considered.
1. Insert one end of the two pipes into the 124 Type Galvanized Key Clamp Fitting,
2. Adjust the angle of the pipes and insert the other end into the sockets of other Key Clamp Fittings,
3. Slowly push the two pipes to fully insert the Key Clamp Fittings,
4. Use the Allen Key to tighten the four Allen Bolts (two on the 124 Type Fitting and one on each of the other Key Clamp Fittings).
124 Type Galvanized Key Clamp Fittings mainly have three types: Double Coating, Hot-dip Galvanizing, and Powder Coating. Some customers also purchase raw black (without any surface treatment). We should consider the use environment of Key Clamp Fittings in specific projects. For example, in a chemical plant, we need to consider the pH of the environment and whether it will react with the surface of the Key Clamp Fittings.
Cast iron, the common ductile iron and malleable cast iron, the performance of the two materials is similar in most cases. The performance standard of Key Clamp Fittings needs to consider its usage scenario.
It is stainless steel, which has strong rust resistance and fastening ability.
Its body is made of sand casting, finished and galvanized.
For more information about other fittings, click Galvanized Key Clamp Fitting.
It is used during system assembly and cannot be used in a completed system.
Ensure that the dimensions of the 124 Galvanized Elbow meet your system requirements. An improper size can affect the structural integrity of handrails, guardrails, or DIY projects. Always check the inner and outer diameters to guarantee a secure and precise fit with your pipes.
The environmental conditions of the installation site dictate the choice of surface finishing. Hot-dip galvanizing, double coating, and powder coating each provide different corrosion resistance and durability. Confirm that the selected surface treatment can withstand moisture, chemicals, or UV exposure to ensure long-term performance.
A reliable supplier should have advanced casting lines, automated surface treatment equipment, and stable raw material sourcing. This ensures continuous supply, shorter lead times, and consistent product quality. HULK Metal integrates production and surface finishing resources, enabling us to handle both small and bulk orders with high efficiency.
Check if the supplier follows ISO 9001 or other international standards. A strong QA system includes dimensional inspection, salt spray testing, hardness testing, and tensile strength verification. HULK Metal’s in-house quality control center guarantees every batch meets strict standards, reducing risks of rework or failure in your projects.
Your project may require different pipe sizes, coatings, or even customized colors. A good supplier should provide flexible customization options and technical support. HULK Metal offers hot-dip galvanizing, double coating, and powder coating finishes, along with tailor-made specifications, ensuring your order fits perfectly with your system’s requirements.
Efficient communication and responsive service are crucial, especially for international buyers. A suitable supplier should offer fast quotation, timely updates, and reliable after-sales support. HULK Metal provides one-on-one project managers, technical consultation, and quick solutions for quality or logistics issues, helping you save both time and effort.
A: HULK Metal has a fully equipped quality inspection center, rigorous testing procedures, and a complete QA system, including tensile, hardness, and salt spray tests, ensuring each 124 Galvanized Elbow meets international standards.
A: Prices depend on factors such as raw materials, size, surface treatment, and order quantity. As a factory-direct supplier, we provide competitive and real-time quotes tailored to your specific project needs.
A: With the same high-quality standards, larger orders receive more favorable pricing. Factory-direct sourcing and optimized production reduce costs, allowing HULK Metal to offer better value compared to multiple-tier suppliers.
A: Minimum order quantity depends on the product size and surface finish. Contact us for a personalized quote, and we can accommodate both small and bulk orders efficiently.
A: Delivery generally takes around 30 days, depending on order size. Larger orders may extend slightly, but we strive to complete production within 45 days, ensuring timely delivery for your projects.
A: We offer hot-dip galvanizing, double-coating galvanizing, and customized powder coating colors. Some customized finishes may have a minimum order requirement, ensuring uniform and durable surface quality.
A: HULK Metal ships to over 50 countries across Europe, North and South America, Africa, Southeast Asia, and beyond, supporting global procurement for handrail, guardrail, and DIY projects.
A: We produce cast iron, stainless steel, and aluminum elbows, but only cast iron has a complete set of molds for immediate production. Other materials require mold development and OEM processes.
A: Available pipe sizes include 33.7mm (1″), 42.4mm (1¼″), and 48.3mm (1½″), covering standard handrail, guardrail, and DIY structural requirements.
A: We accept multiple payment methods including T/T, L/C, and PayPal. Delivery terms can be FOB, CIF, or EXW, depending on your preference and shipping arrangements.
HULK Metal implements strict quality control throughout the production of 124 Type Galvanized Key Clamp Fittings. From raw material selection and sand casting to surface finishing and packaging, each step is monitored to ensure compliance with ISO 9001 standards, guaranteeing consistent strength, durability, and reliability for handrail, guardrail, and DIY structural applications.
Each fitting is measured with precision instruments to ensure pipe compatibility. Dimensions, including inner and outer diameters, socket depth, and overall angles, are checked to meet project specifications and prevent misalignment during assembly.
Before shipment, all products are inspected for surface finish, coating uniformity, and structural integrity. Any defective or substandard items are removed, ensuring clients receive fully qualified, ready-to-install fittings.
Fittings undergo functional testing to verify fit and angle adjustability between 125° and 178°. This ensures they operate correctly in real-world handrail, guardrail, or DIY system assemblies without issues.
Orders are counted and verified against production records to ensure correct quantities are shipped. This prevents shortages or over-delivery and ensures accurate order fulfillment for all client requirements.
We have integrated a complete supply chain and formed a professional team to provide better quality Key Clamp Fittings and services. We are committed to becoming your office in China, allowing you to enjoy one-stop procurement services, spend less time and effort, and receive better quality and cheaper Key Clamp Fittings faster.
We have compiled some content to help you better understand this product. You can contact us at any time for more information.
HULK Metal offers a wide range of Galvanized Key Clamp Fittings to meet diverse structural needs. Options include T-joints, four-way crosses, adjustable swivel fittings, side-outlet tees, and 90° to 180° elbows. Each fitting is crafted from high-quality ductile or malleable iron and finished with hot-dip galvanizing, double coating, or powder coating. Designed for handrails, guardrails, and DIY structures, these fittings provide reliable strength, easy installation, and long-lasting corrosion resistance for various projects.
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.
The Corner Swivel Combination structural pipe fitting is designed to connect pipes set at right angles across perpendicular planes.
The Add on Crossover, also known as Split Crossover, is designed for adding a perpendicular pipe to an already installed system. Its split-sleeve structure makes installation easy without dismantling existing pipes.
The 90 Degree Two Way Elbow structural pipe fitting is designed for connecting two pipe ends at a right angle. It is commonly applied in handrail, guardrail, and fence systems, ensuring strong and stable joints.
Our Four Socket Cross Structural Pipe Fitting comes in various sizes and surface treatments to suit different projects. Made from malleable iron or ductile iron and customizable on request, these fittings are durable and corrosion-resistant.
Clamp on Crossover Structural Pipe Fittings are designed to create perpendicular connections between pipes without requiring dismantling of existing structures. They feature a strong clamping design that ensures tight, gap-free joints.
The Offset Crossover Structural Pipe Fitting is designed to connect two pipes securely in an offset crossing structure. It allows builders to easily create strong and stable frameworks while maintaining flexibility for different structural needs.
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.
No. 101 galvanized pipe handrail fittings are used to connect two pipes into a "T" shape. It is also called a Pipe Clamp Short Tee. One pipe is inserted into the socket, and the other one passes through the channel above.
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.
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.
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.
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.
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.
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.
123 Galvanized Railing Fittings 40 to 70 Elbow is very easy to use and can be used in any scenario where two pipes need to be connected at an angle of 40 degree to 70 degree. We have a complete supply chain and provide QA services.
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.
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.
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.
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.
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