Abstract: A clamp for clamping a conduit to an elongate structural supporting element having a central longitudinal axis. The clamp comprising a pair of complementary clamping straps adapted for clamping a conduit therebetween. Each strap has inner and outer end portions and a central portion therebetween, the inner end portions of the straps being engageable with the supporting element to mount the straps on the supporting element in a position wherein they extend outwardly from the supporting element on opposite sides of the conduit with the central portions of the straps disposed in face-to-face relation with the conduit. A fastener is provided for drawing the outer end portions of the clamping straps toward one another thereby to clamp the conduit between the central portions of the straps.