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RUEvery batch undergoes final inspection for appearance, surface treatment quality, and structural integrity before packaging and shipment.
1. Higher Quality Products
2. Shorter Production Cycle
3. More Corrosion Resistant
4. Shorter Delivery Cycle
5. Comprehensive After Service
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. Manufactured from durable cast iron or ductile iron, it can be finished with galvanizing or powder coating to meet various environments and customer requirements.
HULK Metal produces Side Palm Fixing Structural Pipe Fittings in multiple sizes and materials to suit diverse railing applications. Standard socket dimensions cover tube sizes of 33.7mm, 42.4mm, and 48.3mm, with options for customization. Customers can choose surface treatments such as hot-dip galvanizing, double-coating, or powder coating for enhanced corrosion resistance. Each fitting is produced under strict quality control to ensure accuracy, durability, and long-term performance in various projects.
| 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 | 146 Side Palm Fixing | ||||||||||
| 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-146-B | HM-D-146-B | HM-PC-146-B | HM-B-146-B | 76 | 71 | 24 | 63 |
| C | 32 | 5/4" | 42.4 | HM-G-146-C | HM-D-146-C | HM-PC-146-C | HM-B-146-C | 83 | 82 | 28 | 72 |
| D | 40 | 3/2" | 48.3 | HM-G-146-D | HM-D-146-D | HM-PC-146-D | HM-B-146-D | 89 | 86 | 31 | 78 |
The Side Palm Fixing Structural Pipe Fitting is widely used in railing systems for stairs, ramps, and walls. Its strong three-lug design provides higher load-bearing performance and secure fixing against vertical or horizontal surfaces. With advanced socket and bolt connection, it guarantees stability and safety in installation. HULK Metal provides different materials, finishes, and sizes, ensuring customers receive fittings suitable for diverse projects and working environments.
The Side Palm Fixing Structural Pipe Fitting is designed to secure uprights of handrails, guardrails, and ramps to the inside or outside of walls, stairways, and slopes. Its three lugs and aligned sockets are drilled with holes in a triangular layout, delivering stronger bearing capacity. Each socket includes two hex bolts to fasten uprights more securely. Unlike Horizontal or Vertical Railing Side Supports, this fitting allows flush mounting without gaps against fixed surfaces, while providing superior strength. Pipes cannot pass through the sockets of a standard Side Palm Fixing, making it highly reliable for firm structural connections.
HULK Metal offers Side Palm Fixings in cast iron, stainless steel, and aluminum, meeting different strength, cost, and environment needs.
Side Palm Fixings made of cast iron, including malleable iron and ductile iron, offer excellent strength and cost-effectiveness. Malleable iron is widely used for indoor and light-duty applications, while ductile iron provides higher tensile strength and impact resistance for heavy-duty projects. Both can be surface treated with galvanizing or powder coating to improve corrosion resistance and extend service life.
Stainless steel Side Palm Fixings deliver outstanding corrosion resistance, making them ideal for marine environments, outdoor facilities, and high-humidity conditions. They maintain structural strength and aesthetic appearance without frequent maintenance. Although the cost is higher compared to cast iron, stainless steel ensures long-term performance and durability. Custom sizes and surface treatments are available to match specific engineering and architectural requirements.
Aluminum Side Palm Fixings are lightweight yet strong, offering ease of installation and excellent corrosion resistance. They are suitable for projects requiring reduced overall structure weight, such as temporary railings, mobile platforms, and transportable systems. Powder coating can be applied to achieve aesthetic finishes. While not as strong as ductile iron, aluminum fittings balance strength, corrosion resistance, and ease of handling.
HULK Metal provides multiple surface treatments to improve corrosion resistance, wear resistance, and aesthetics for different environments and project requirements.
Hot-dip galvanizing provides thick and uniform zinc coating on the fitting surface, offering long-lasting corrosion resistance even in harsh outdoor conditions. This treatment makes Side Palm Fixings suitable for applications in coastal areas, industrial sites, and high-humidity environments. The strong zinc layer ensures protection against rust, scratches, and environmental wear. It is the most commonly chosen finish for structural pipe fittings used in heavy-duty guardrails, staircases, and permanent installations exposed to challenging conditions.
Double-coating galvanizing combines hot-dip galvanizing with electro-galvanizing, providing a dual protective layer. This process enhances corrosion resistance, surface smoothness, and overall durability compared with single-layer galvanizing. It is especially suitable for projects requiring both high protection and better visual appearance, such as commercial facilities, public infrastructures, and decorative railings. With double-layer protection, Side Palm Fixings can achieve extended service life, reduced maintenance, and consistent performance under long-term outdoor exposure.
Powder coating applies an electrostatically charged powder layer cured under heat, producing a durable and attractive finish. It offers excellent resistance to chipping, scratching, and fading while providing more aesthetic options with customizable colors. Powder-coated Side Palm Fixings are suitable for residential, commercial, and architectural projects where visual design is as important as strength. This treatment ensures corrosion protection, environmental friendliness, and long-lasting performance while allowing buyers to match railing systems with specific project requirements.
l Ensure the chosen Side Palm Fixing matches the required tube size and system specifications.
l Confirm the selected surface treatment meets the environmental and durability demands.
l Check compliance with local installation standards and safety regulations.
A reliable supplier should have advanced casting facilities, CNC machining, and complete mold development capability. Strong production capacity ensures consistent quality and timely delivery for bulk orders. A factory with ISO and CE certification can better meet international standards, guaranteeing stable and long-term cooperation for large-scale projects.
Choose a supplier with a strict quality inspection process, including dimensional checks, load testing, and surface treatment inspection. A well-established QC center helps detect defects before shipment and reduces risks. Transparent quality reporting and third-party inspection cooperation further prove that the supplier is trustworthy and professional in bulk supply.
Suppliers offering technical support and customization services can provide drawings, OEM/ODM solutions, and engineering advice. This ensures Side Palm Fixings can be adapted to different project needs. Strong R&D support and quick response to special requirements indicate that the supplier is capable of handling complex and demanding bulk orders.
A strong supplier should provide flexible logistics options, shorter lead times, and professional export support. Warehousing services and cooperation with multiple freight routes ensure faster, safer, and more cost-effective deliveries. Reliable delivery cycles directly impact project timelines and customer satisfaction, making logistics capability a critical factor in supplier selection.
Excellent after-sales service ensures smooth communication and problem-solving after delivery. This includes handling quality claims, providing replacement parts, and supporting sales channels with marketing materials. A dedicated service team can help clients sell products better and enhance brand reputation, which is essential for long-term partnerships with bulk buyers.
A: A fully equipped quality inspection center, rigorous testing procedures, and a complete quality assurance system guarantee stable product quality. From raw material selection to final inspection, every process is strictly monitored to ensure fittings meet international standards.
A: All prices are based on high-quality products. With the same quality, our price is more competitive. Larger orders can achieve better unit prices due to economies of scale. Contact us for detailed quotations and tailored pricing solutions for bulk procurement.
A: The MOQ depends on the size and type of Side Palm Fixing required. Standard sizes usually have lower MOQ, while customized products may require higher quantities. Contact our sales team for specific details and quotations tailored to your project requirements.
A: Delivery time usually ranges from 30 to 45 days depending on order quantity and customization requirements. Larger orders may benefit from higher production efficiency. We also offer flexible logistics solutions to shorten delivery cycles according to clients' project deadlines.
A: We provide hot-dip galvanizing, double-coating galvanizing, and powder coating. Customized color powder coating is available with a specific MOQ. Each surface treatment is carefully applied to meet corrosion resistance, aesthetic, and durability requirements for different project environments.
A: We have exported to more than 50 countries, including Europe, North America, South America, Africa, and Southeast Asia. Our logistics team provides multiple freight options to ensure fast, reliable, and safe delivery to global customers.
A: We produce structural pipe fittings in cast iron, stainless steel, and aluminum. Cast iron fittings are our main product with complete molds. Stainless steel and aluminum require mold customization and OEM services, allowing us to meet different material demands.
A: We offer Side Palm Fixings suitable for tube sizes 33.7mm, 42.4mm, and 48.3mm as standard options. Custom sizes are available based on project requirements. Contact us for tailored solutions to ensure the right fit for your railing system.
A: Focus on the supplier's production capacity, certifications, QC system, customization ability, and logistics services. Check references and customer feedback to ensure long-term reliability. A supplier with comprehensive after-sales service is better for building stable cooperation.
A: We support multiple payment methods, including T/T, L/C, and other negotiable terms. Delivery terms such as FOB, CIF, and EXW are available depending on client preference. Flexible trade arrangements ensure smooth transactions and customer satisfaction.
HULK Metal implements a comprehensive quality control system for every Side Palm Fixing Structural Pipe Fitting. From raw materials to final delivery, our QC team conducts strict inspections to ensure products meet international standards. Multiple inspection steps guarantee accurate dimensions, strong performance, and reliable surface treatments. This multi-layer control system ensures bulk buyers receive consistent, high-quality products, reducing risks and improving project reliability.
Every batch undergoes final inspection for appearance, surface treatment quality, and structural integrity before packaging and shipment.
We measure each fitting with precision instruments to ensure exact dimensions, compatibility with standard tubes, and compliance with customer drawings before production approval.
We verify quantities before shipment, ensuring every order matches client requirements and avoiding shortages or delays in bulk delivery.
Load-bearing and installation tests are carried out to confirm the stability, performance, and safety of the Side Palm Fixings under real application conditions.
HULK Metal owns a modern production base equipped with advanced casting, machining, and surface treatment facilities. With a complete production chain and strict process management, we ensure consistency in quality and efficiency. Every stage, from mold making to final packaging, is monitored by professional teams, enabling us to provide high-standard Side Palm Fixing Structural Pipe Fittings for global bulk buyers with shorter cycles and competitive pricing.
Choosing HULK Metal means getting Side Palm Fixings with stricter certifications, shorter production cycles, stronger corrosion resistance, and comprehensive after-sales support. We provide tailored production plans, transparent order tracking, and flexible logistics solutions for global buyers. With professional teams, advanced equipment, and rigorous inspections, HULK ensures every product meets international standards, empowering your projects with reliable quality, better cost performance, and full technical support for long-term cooperation.
Here you can explore articles related to Side Palm Fixing Structural Pipe Fittings, including product application cases, installation guides, and technical insights. Each article provides practical information and professional knowledge to help bulk buyers better understand the product's performance, advantages, and usage scenarios. These resources will also give you ideas on how to optimize your railing systems, compare different fittings, and choose the most suitable solution for your specific project needs.
In addition to Side Palm Fixing Structural Pipe Fittings, HULK Metal manufactures a wide range of related products, such as Double Lugged Brackets, Horizontal Railing Side Supports, Vertical Railing Side Supports, Swivel Base Flanges, Cradle Clamps, and Hook Fittings. Each fitting is produced with strict quality control and multiple surface treatment options. By offering a complete product line, we ensure buyers can source all structural pipe fittings from one reliable supplier, saving time and cost.
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.
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
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
Malleable Iron/Ductile Iron/Customizable
Galvanized/Powder-coat/Customizable
TUBE SIZE(mm)
26.9
33.7
42.4
48.3
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
Customizable
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.
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