Overview Product Description Colony 192038 Top Beam Clamp Material: Steel Diameter: 3/8 Inch 400 LB Work Load Limit 3/8"-16 Thread Size With Lock-Nut. Product Videos Custom Field Size 3/8 Product Reviews Write a Review Write a Review × Colony 192038 Top Beam Clamp Material: Steel Diameter: 3/8 Inch 400 LB. Work Load Limit. 3/8"-16 Thread Size With Lock-Nut Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *