Overview Reviews Product Description B-Line B2211 Strut Clamp Material: Zinc Plated Steel Diameter: 1-1/4 Inch TW and IMC, 1500-1691 OD. Product Videos Custom Field Size 1-1/4 Material Steel Product Reviews Write a Review Write a Review × B-Line B2211 Strut Clamp Material: Zinc Plated Steel Diameter: 1-1/4 Inch TW and IMC, 1.500-1.691 OD Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *