Abstract: Apparatus for suspending a pipe from a structural member, such as a beam, having a projecting flange with a proximate layer of building material, wherein a beam clamp having jaws and a fastening device for holding the beam clamp on the beam flange also has a rib on the outside of one jaw extending longitudinally thereof to facilitate insertion of the jaw between the beam flange and the proximate layer of building material and to resist turning forces applied to the beam clamp. The beam clamp has a securing device in one end communicating with a tapered recess in the other end forming a guideway for a connecting rod which carries a collar for supporting the pipe. The collar has embossments to provide limited contact between the collar and the pipe to reduce resistance to rotation of the pipe, as for threading it into another pipe member.