Beam Clamp; Type Single U; Maximum Jaw Capacity 1 Inch; Supplied with Screw Yes; Screw Type Square Head; Load Capacity 300 Lb; Material Malleable Iron; Finish Zinc Electroplate; ROHS Compatible; Applicable Standard UL (Canada and US), CSA; Overall Dimension 2-1/2 Inch L x 2-1/2 Inch W x 2-1/8 Inch H; Trade Size 2-1/2 Inch