Drop Forged Swivel Coupler – German Type (YH166S) | EN74 Scaffolding Clamp

The Bonin Type YH166S Swivel Coupler is a heavy-duty German Style fitting designed for flexible scaffolding connections. It connects two 48.3mm tubes at any angle (360 degrees), making it essential for diagonal bracing. Engineered to meet EN 74 standards with specific nut sizes (19mm/22mm) tailored for the German construction industry.

• Model: YH166S (German Swivel)

• Function: 360° Rotational Connection

• Nut Size: 19mm / 22mm (German Standard)

• Surface: HDG / EP / Paint

Why Choose Bonin German Type Swivel Couplers?

• Tailored for German Standards: Standard British couplers come with 21mm/23mm nuts, which don’t fit many German scaffolders’ ratchet spanners (Ratschenschlüssel). Our YH166 is available with 19mm or 22mm flange nuts, ensuring seamless integration with your existing toolkits in Germany.

• Heavy-Duty Construction: Manufactured via drop forging, the YH166 offers superior durability compared to pressed steel clamps. The high-strength center pin ensures smooth rotation while maintaining exceptional shear strength, complying with EN 74 Class A safety requirements.

• Weather Resistant Finish: For the Central European climate, we highly recommend our Hot Dip Galvanized (HDG) finish. With a zinc coating of min. 50-60µm, it provides long-term protection against rain, snow, and industrial pollution.

Applications:

• Diagonal Bracing (Cross-bracing) for Facade Scaffolding

• Strengthening Formwork Support

• Industrial Scaffolding Projects in Munich, Berlin, Hamburg, etc.