Norma W3 Worm Drive Stainless Steel Hose Clamp 12-20mm 12209W3P

The Norma W3 Worm Drive Hose Clamp delivers professional-grade performance with innovative design features that ensure secure, reliable connections for hoses ranging from 12mm to 20mm in diameter. Engineered from high-quality stainless steel (430), this 9mm-wide clamp features an improved asymmetric housing that distributes forces evenly during assembly and tightening, preventing housing tilt and ensuring consistent clamping pressure across the entire hose circumference.

Engineered for ease of installation, the W3 includes screw support for safe guidance of the band end during assembly, while the material and clamping range are conveniently stamped on the band to prevent sizing errors. The short housing saddle provides even contact pressure for improved efficiency, and the smooth or stamped band interior offers optimal hose protection, preventing damage to delicate hose materials during installation and use. Ideal for smaller diameter applications in plumbing, automotive, and general industrial use.

Key Features

• Improved asymmetric housing for even force distribution
• Screw support ensures safe, easy assembly
• Material and clamping range stamped on band prevents errors
• Asymmetric extension prevents housing tilt when tightened
• Short housing saddle delivers even contact pressure
• Smooth or stamped band interior protects hose from damage
• Stainless steel construction for corrosion resistance

Specifications

• Type: Worm Drive/W3
• Material: Stainless Steel (430)
• Minimum clamp diameter: 12mm
• Maximum clamp diameter: 20mm
• Band width: 9mm
• Brand: Norma
• SKU: 12209W3P