NO COMBINED SHIPPING ON THIS For sale is a Bridge Clamp. 8-1/2" Maximum opening. 3-3/4" Depth of Throat (face of "C" to center of clamping pressure). Approximately 14-3/4" X 8-3/4" Overall dimensions (not including screw). 1-1/4" Diameter of clamp screw. Clamp screws vary from approximately 6-1/2" to 11" in length. Approximately 24 - 25 pounds net weight each. I have a number of these clamps available. All the ones I looked-at were made either by J.H. Williams or Armstrong. They are all drop- forged construction; made in the USA. NO Chinese or other foreign types. One clamp will fit in a USPS large flat rate box, but no additional clamps or combined shipping is possible for these items. Price shown in this listing is for ONE clamp.