Pressed Inner Joint Pin BS1139 48.3mm Scaffold Coupler
Huayou Pressed Inner Joint Pin is a Pressed Joint Pin designed to connect two scaffold tubes from the inside. Unlike an external sleeve coupler, the joint pin is inserted into the ends of the scaffold tubes, helping maintain a clean outer surface while extending the overall tube length.
The standard 48.3mm Scaffold Joint Pin is designed for British-type scaffold tubes and is manufactured from pressed steel. The standard model uses Q235 steel and is available according to BS1139 requirements.
This Inner Joint Pin Coupler is commonly selected for tube and coupler scaffolding where scaffold tubes need to be extended horizontally or vertically. Huayou can also supply other scaffold tube connection components, including forged joint pins and joint pin designs for different tube standards.
Pressed Inner Joint Pin Specifications
| Item | Specification |
| Product Name | Pressed Inner Joint Pin |
| Product Type | Pressed Steel Joint Pin |
| Application | Scaffold Tube Connection |
| Standard | BS1139 |
| Material | Q235 Steel |
| Tube Size | 48.3mm |
| Connection Size | OD48.3 × OD48.3mm |
| Type | Pressed Steel |
| Surface Finish | Galvanized / Zinc Plated |
| Approx. Weight | 0.68 kg |
| Connection Method | Internal Tube Connection |
| Manufacturer | Huayou |
Note: The final specification, surface treatment and packaging can be confirmed according to the customer's scaffold tube requirements.
Pressed Inner Joint Pin vs Scaffold Sleeve Coupler
| Feature | Pressed Inner Joint Pin | Sleeve Coupler |
| Connection Position | Inside scaffold tube | Outside scaffold tube |
| Main Product Type | Inner joint | External sleeve |
| Typical Tube Size | 48.3mm | 48.3mm |
| Connection Method | Inserted into tube ends | Fits around tube ends |
| Outer Profile | Relatively unobstructed | External fitting |
| Material | Pressed steel | Pressed steel |
| Typical Standard | BS1139 | BS1139 / EN74 depending on model |
Key Features of Huayou Pressed Inner Joint Pin
1. Internal Connection Design
The Scaffold Joint Pin is inserted into the inside of the scaffold tubes, allowing two tubes to be connected without adding a large external fitting around the joint.
2. Designed for 48.3mm Scaffold Tubes
The standard model is designed for 48.3mm scaffold tubes, making it suitable for common British-type tube and coupler scaffolding systems.
3. Pressed Steel Construction
The Pressed Steel Joint Pin is manufactured from formed steel rather than a drop-forged body. This provides a practical solution for projects where a pressed scaffold fitting is preferred.
4. BS1139 Type
The BS1139 Inner Joint Pin is designed around the dimensions and requirements commonly used with British-type scaffolding tubes.
5. Galvanized Surface Options
Galvanized or zinc-plated finishes can be supplied to improve corrosion resistance during storage, transportation and outdoor use.
6. Practical Tube Extension
The Inner Joint Pin allows two scaffold tubes to be joined end-to-end, providing a convenient way to extend tube lengths within a tube and coupler scaffold structure.
Why Choose Huayou Pressed Inner Joint Pins?
Consistent Dimensions
The joint pin is produced according to specified tube dimensions to ensure proper fitting with compatible scaffold tubes.
Practical Pressed Steel Design
The pressed construction provides a cost-effective option for standard tube and coupler scaffolding projects.
Multiple Surface Finishes
Huayou can supply galvanized or zinc-plated finishes depending on the customer's corrosion protection requirements.
Scaffolding Product Range
In addition to Pressed Inner Joint Pins, Huayou supplies scaffold tubes, couplers, clamps, ringlock scaffolding, cuplock scaffolding, scaffolding planks and other scaffolding components.
OEM & Project Supply
Dimensions, surface treatment, packaging and other production requirements can be discussed according to project specifications and purchasing requirements.
Where Are Pressed Inner Joint Pins Used?
Pressed Inner Joint Pins are primarily used with tube and coupler scaffolding where two compatible scaffold tubes need to be connected end-to-end.
Typical applications include:
- 1.Tube and coupler scaffolding
- 2.Construction scaffolding
- 3.Building maintenance scaffolding
- 4.Industrial scaffolding
- 5.Temporary access structures
- 6.Plant maintenance
- 7.Infrastructure construction
- 8.Scaffold tube extension
