Clamp Back and Straps Universal One-Piece Flange Thickness 1 1/4 in to 1 1/2 in Wire Range 1.505 to 1.950 AC/MC/JMC Load Capacity 80 lb Thread Size 1/4-20 Compatible Pipe Size 1 1/4 in 1 1/2 in Steel Finish Corrosion Resistant Polyolefin Coating Black Overall Length 3 3/8 in Overall Width 1 1/8 in Overall Height 2 9/32 in Compatible Conduit Trade Size 1 1/4 in 1 1/2 in