Bessey® Bar Clamp, Heavy Duty F-Style, Series: 4800S, 7 in Throat Depth, 18 in Clamping, Hex Head Swivel, 1-1/2 in Swivel Pad, 55/64 in Screw, ACME Threaded Spindle, 55/64 in Spindle dia, Steel Bar, 1-1/2 x 3 in Clamp Face, 4880 lb Clamping, 1-37/64 x 25/32 in Nominal Rail, T-Handle Handle, 6-7/8 in L Handle, Steel Handle, Zinc Plated Bessey® 4800S-18 Heavy Duty F-Style Bar Clamp, 7 in D Throat, 18 in Clamping, Hex Head Swivel