Sliding Arm Bar Clamp Deep Reach Flat Rail Opening (In.) 24 in Throat Depth (In.) 12 in Load Capacity (Lb.) 1 550 lb Nominal Rail Size (In.) 1-49/64 x 15/32 Nominal Clamping Pressure 1 550 Spindle Dia (In.) 0.625 Pad Type Standard Swivel Pad (In.) 1-1/4 Screw Size (In.) 0.625 Max Jaw Opening (In.) 24 in Clamp Face (In.) 1-7/16 x 1-7/8 Bar Thickness (In.) 1 49/64 in Bar Width (In.) 15/32 in Bar Material Malleable Cast Handle Length (In.) 3 3/8 in Handle Material Forged Steel