Mallable Iron Rod Support Beam Clamp 1/4"-20 - Strong, durable Rod Support Beam Clamp.Mallable Iron Rod Support Beam Clamp 1/4"-20 features include: Used with Conduit Hangers, Bridle Rings amp; Drop Rods 1/4" up to 1/2" Tapped for Rods - bottom and back on all sizes Malleable Iron Zinc Plated Order Qty of 1 = 1 Piece Below is more info on our Mallable Iron Rod Support Beam Clamp 1/4"?-20