Scaffolding Couplers

BS1139 / EN74 Drop Forged Double Coupler — Right Angle Clamp 1.05kg
This British-type drop forged double coupler connects two 48.3mm scaffolding tubes at a 90° right angle. It is the most essential fitting in any tube-and-coupler scaffolding system — used to join ledgers to standards, transoms to ledgers, and to create the main load-bearing frame of the scaffold.
Manufactured from Q235 structural steel with drop forging process for superior strength and durability. Each coupler is tested to EN74 Class B standards with a typical slip load of 6.25 kN at 54 Nm tightening torque.
Technical Specifications
| Property | Value |
|---|---|
| Product Name | British Type Drop Forged Double Coupler |
| Standards | EN74 / BS1139 / AS1576 |
| Material | Q235 Structural Steel |
| Process | Drop Forged |
| Tube Size | OD 48.3mm × 48.3mm (Right Angle) |
| T-Bolt | 1/2" × 88mm, Nut: 21mm |
| Net Weight | 1.05 kg / piece |
| Slip Load | ≥ 6.25 kN @ 54 Nm torque |
| Surface Finish | Hot-Dip Galvanized / Electro-Galvanized / Painted |
| Certification | ISO 9001, SGS, BV Available |
| OEM Service | Custom logo, packaging available |
Frequently Asked Questions About BS1139/en74 Drop Forged Double Coupler 1.05kg | 48.3mm Right Angle Scaffolding Clamp
Q: What is the minimum order quantity for BS1139/en74 Drop Forged Double Couple...?
A: Standard MOQ is one 20ft container (approximately 25-28 tons). For trial orders, we can arrange LCL shipments starting from 1 ton with a small logistics premium. Contact us with your required specifications for a precise quotation.
Q: How long does delivery take for BS1139/en74 Drop Forged Double Couple...?
A: Production lead time is 15-25 days after deposit confirmation for standard orders. Large quantity orders (10+ containers): 25-35 days. Sea freight transit time varies by destination port — typically 20-45 days. Contact us with your destination for an estimated delivery schedule.
Q: Can I get samples of BS1139/en74 Drop Forged Double Couple... before placing a bulk order?
A: Yes. We provide free samples for existing stock items (you cover freight cost). For custom specifications, a sample fee applies which is fully deducted from your bulk order. Typical sample delivery: 3-5 working days after confirmation.







