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Scaffolding couplers made by stamping and forming steel plate, used to connect scaffold tubes at fixed or adjustable angles in tube and coupler scaffolding systems.
Pressed or stamped steel couplers are scaffolding clamps manufactured from steel plate by stamping, forming, welding, and riveting. They connect scaffold tubes in tube and coupler scaffolding systems and are an economical alternative in the coupler market.
Design note: Stamped body halves are formed to the tube profile and joined by welding or riveting, with a bolt and nut for clamping. Swivel types allow angle adjustment, while fixed types give a rigid right-angle connection.
STAMPED BODY
Steel plate stamped and formed to fit the scaffold tube profile, then welded or riveted.
SCAFFOLDING CONNECTION
Connects tubes for diagonal bracing, scissor bracing, and temporary supports.
Material is Q235 steel plate, sizes are 48.3 x 48.3 mm and 48.3 x 60.3 mm, and common standards are BS1139 and EN74.
Pressed couplers are supplied as sets with bolts, nuts, and washers, offering an economical and convenient solution for tube and coupler scaffolding.
✓ Stamped body
Steel plate forming.
✓ Fixed / swivel
Rigid or adjustable types.
✓ BS1139 / EN74
Scaffolding standards.
✓ Set supply
Bolts, nuts and washers.
By Type
Pressed swivel coupler; pressed fixed coupler; sleeve coupler; putlog coupler; board retaining coupler.
By Structure
Welded assembly; riveted assembly; bolted clamp with forged bolt.
By Style
British type (BS1139); Japanese type (JIS); European / EN74 style options.
By Size
48.3 x 48.3 mm; 48.3 x 60.3 mm.
By Finish
Electro galvanized; hot-dip galvanized; painted.
By Standard
BS1139; EN74; JIS; custom per project specification.
Classification note: Pressed or stamped couplers are distinguished from drop forged couplers by their steel plate body and welding or riveting process. They cover British, Japanese, and European styles and include swivel, fixed, sleeve, putlog, and board retaining types in the main scaffold tube sizes and finishes.
01 / TUBE SCAFFOLDING
Tube and coupler scaffolding for construction access.
02 / DIAGONAL BRACING
Connect diagonal bracing to vertical and horizontal bars.
03 / SCISSOR BRACING
Swivel connection for scissor bracing.
04 / TEMPORARY SUPPORTS
Angle adjustment of temporary support structures.
05 / CONSTRUCTION
General construction scaffolding connections.
06 / MAINTENANCE WORKS
Access scaffolding for maintenance projects.
| Material Type | Characteristics | Typical Finish |
|---|---|---|
| Q235 Steel Plate | Steel plate stamped and formed for the coupler body. | Electro galvanized |
| Galvanized Steel | Zinc protection for outdoor scaffolding use. | Zinc / HDG |
| Hardware | Bolts, nuts, and washers supplied with the coupler set. | Per specification |
Electro Galvanized
Standard bright zinc finish for pressed couplers.
Hot-Dip Galvanizing
Thick zinc protection for outdoor and wet site conditions.
Painted
Painted option available on request.
Custom Coating
Special finishes per project specification.
Stamped Body Halves
Steel plate formed to the tube profile and joined by welding or riveting.
Clamp Bolt
Bolt and nut clamping with washers for secure tube grip.
Fixed / Swivel Types
Rigid right-angle or adjustable angle connection options.
Set Supply
Supplied with bolts, nuts, and washers as sets.
Code requirements: The coupler centerline should be within 150 mm of the main node. Vertical bar laps need at least 1 m with 3 couplers at equal intervals, and the end cover edge should be at least 100 mm from the bar end.
48.3 x 48.3 mm 48.3 x 60.3 mm Q235 Steel Plate Stamping + Welding BS1139 / EN74 / JIS Fixed / Swivel
| Size | Application | Note |
|---|---|---|
| 48.3 x 48.3 mm | Pipe to pipe connection | Standard scaffold tube |
| 48.3 x 60.3 mm | Pipe to larger tube | Mixed-size systems |
Other pipe sizes and coupler types are available on request.
Kraft boxes
With inner partitions, thread protection and full labeling.
Bulk cartons
Five-layer corrugated, waterproof sealed and strapped.
Pallets / wooden cases
ISPM-15 heat treatment certification available.
Resealable polybags
For samples and low-volume orders.
VCI anti-rust packaging
For long-distance overseas shipment.
Custom OEM packaging
Labels, barcodes and packaging; MOQ may apply.
01 Raw Material Inspection
02 Blanking / Cutting
03 Stamping / Forming
04 Drilling
05 Welding / Riveting
06 Assembly
07 Surface Treatment
08 Dimensional Inspection
09 Angle Test
10 Load Test
11 Packaging & Labeling
12 Outgoing QC
Dimensional inspection
Bore size, bolt spacing, and overall dimensions per standard.
Weld / rivet check
Welded and riveted joints verified visually and by sampling.
Angle test
Swivel rotation range and locking verified by sample test.
Load test
Coupler strength verified per BS1139 / EN74 requirements.
Coating check
Galvanized coating quality and thickness verified.
Final verification
100% visual inspection, set completeness and traceability.
1. What is a pressed or stamped coupler?
A scaffolding coupler made from steel plate by stamping, forming, welding, and riveting, used to connect scaffold tubes.
2. What types are available?
Pressed swivel, fixed, sleeve, putlog, and board retaining couplers.
3. What sizes are available?
48.3 x 48.3 mm and 48.3 x 60.3 mm for scaffold tube connections.
4. What standards do they meet?
BS1139 and EN74 are supported.
5. What surface finishes are available?
Electro galvanized and hot-dip galvanized, with painted options on request.
6. How are they supplied?
As complete sets with bolts, nuts, and washers.
