What is a Putlog Coupler?
A Putlog Coupler, also known as a Single Coupler or Putlog Clamp, is a non-load-bearing scaffolding fitting used to connect a putlog tube or transom tube to a ledger tube at a right angle.
Unlike a double coupler, a putlog coupler is primarily used to support scaffold boards, toe boards, and working platforms rather than carrying structural loads.
Common industry names include:
- Putlog Coupler
- Single Coupler
- Single Putlog Coupler
- Putlog Clamp
- Pig Ear Coupler
- Single Scaffold Clamp
- Ledger-to-Transom Coupler
- Transom Coupler
- Scaffold Board Support Coupler
Standard Putlog Coupler Sizes in India
The 48.3 mm × 48.3 mm putlog coupler is the most widely used size in India because it fits standard scaffold tubes used in construction, industrial maintenance, and infrastructure projects.
| Tube O.D. Compatibility | Imperial Equivalent | Common Usage | Availability in India |
|---|---|---|---|
| 48.3 mm × 48.3 mm | 1½ in × 1½ in | Standard tube-and-coupler scaffolding | Most common |
| 48.3 mm × 42.3 mm | 1½ in × 1¼ in | Reducing applications | Limited availability |
| 60.3 mm × 48.3 mm | 2 in × 1½ in | Industrial scaffolding systems | Special order |
| 60.3 mm × 60.3 mm | 2 in × 2 in | Heavy-duty applications | Special order |
Most Common Putlog Coupler Size
The 48.3 mm × 48.3 mm putlog coupler remains the preferred choice for ledger-to-transom connections, scaffold board support, and access platforms.
International Putlog Coupler Sizes and Standards
AMCO Exports supplies putlog couplers and single scaffold clamps for global scaffolding systems used across Europe, the Middle East, Asia-Pacific, Africa, and industrial sectors.
| Tube O.D. Compatibility | Imperial Equivalent | Common Markets | International Standard |
|---|---|---|---|
| 48.3 mm × 48.3 mm | 1½ in × 1½ in | UK, Europe, Middle East, India, Africa | BS1139, EN74, AS/NZS 1576.2 |
| 48.6 mm × 48.6 mm | 1½ in × 1½ in | Japan, South Korea | JIS A 8951, KS |
| 42.7 mm × 42.7 mm | 1¼ in × 1¼ in | Legacy UK systems | EN74 |
| 60.3 mm × 48.3 mm | 2 in × 1½ in | Oil & Gas, Refineries, Power Plants | EN74 |
| 60.3 mm × 60.3 mm | 2 in × 2 in | Infrastructure and Offshore Projects | BS1139, EN74 |
| 76.1 mm × 76.1 mm | 3 in × 3 in | Bridge and Marine Projects | Project Specific |
| 89.0 mm × 89.0 mm | 3½ in × 3½ in | Petrochemical and Shipbuilding | Project Specific |
Note: The 48.3 mm × 48.3 mm putlog coupler is the global standard for tube-and-coupler scaffolding systems.
Applications of Putlog Coupler
- Scaffold working platforms
- Scaffold board and plank support
- Ledger-to-transom connections
- Access scaffolding systems
- Industrial maintenance platforms
- Bridge and infrastructure projects
- Refinery and power plant scaffolding
- Temporary access structures
- Commercial building maintenance
Why Choose AMCO Putlog Couplers?
- High-strength drop forged and pressed steel construction
- Corrosion-resistant zinc-plated and galvanized finishes
- Precision threading for secure tightening
- Compatible with standard 48.3 mm scaffold tubes
- Reliable performance in demanding site conditions
- Bulk production capacity for large projects
- OEM branding and export packaging available
- Pan India supply and international export support
Pan India Supply and Export Support
AMCO Exports supplies putlog couplers, single couplers, and putlog clamps across India and international markets.
Pan India: Mumbai, Delhi, Bengaluru, Chennai, Hyderabad, Kolkata, Pune, Ahmedabad, Surat, Noida, Gurugram, Ludhiana, Jalandhar, Chandigarh and more.
Export Markets: UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Nepal, Bangladesh, Sri Lanka, Malaysia, Singapore, Kenya, Tanzania, South Africa, Nigeria, Indonesia, and Vietnam.
Related Scaffolding Products
- Forged Right Angle Coupler
- Swivel Coupler
- Sleeve Coupler
- Board Retaining Coupler
- Scaffolding Couplers & Clamps
- Types of Scaffolding Couplers
FAQ – Putlog Coupler Uses and Specifications
Q1: What is a putlog coupler used for?
Ans: A putlog coupler connects putlogs or transoms to ledger tubes to support scaffold boards and working platforms.
Q2 : Is a putlog coupler load-bearing?
Ans: No. A putlog coupler is a non-load-bearing fitting designed for board support and ledger-to-transom connections.
Q3 :What tube size does it fit?
Ans: The standard putlog coupler fits 48.3 mm OD scaffold tubes.
Q4 :What is another name for a putlog coupler?
Ans: Putlog couplers are also known as single couplers, putlog clamps, pig ear couplers, scaffold single clamps, and ledger-to-transom couplers.
Q5 :What standards do your putlog couplers comply with?
Ans: Our putlog couplers are manufactured according to BS1139, EN74, IS 2750, and IS 4190 requirements.
Q6 :Do you supply bulk and export orders?
Ans: Yes. AMCO Exports supplies putlog couplers in bulk quantities with export-grade packaging, OEM branding, and documentation support.
Contact AMCO Exports
📞 Call / WhatsApp: +91 98888 82322
📧 Email: amcosales1@gmail.com
🌐 Website: www.amcoexports.com
✅ MOQ and bulk pricing available
✅ Same-day or 24–48 hour dispatch
