A clamp assembly for a prosthetic limb includes a plug and a clamp. The plug includes a base and a rounded head defined by a cylindrical wall projecting from the base. The clamp includes a hollow head portion defining a plug bore configured to receive the rounded head of the plug, the head portion comprising a plurality of holes extending through the head portion, each hole configured to receive one of a screw or a bolt for engagement with the rounded head of the plug to fix the plug relative to the head portion. The clamp also includes a clamping portion connected to the hollow head portion and defining a tube bore configured to receive a tube of a prosthetic limb.
