Abstract: A welding clamp is provided which attaches along its base portion to the receiving plate of a conventional jackstand. An upright member extends from the base and is angled in a direction which extends toward a vertical axis defined by the jackstand. The support member provides a sleeve for receiving in an adjustable manner a horizontal arm. One end of the arm defines a threaded aperture through which a bolt is positioned. The bolt is used to secure a segment of pipe within the pipe stand without a need for temporary tacking welds between the pipe and the jackstand.