Flexible Wiring Loom Stainless Steel Harness Conduit 1/4" x 10'. Here is your chance to tidy up that wiring mess and add some class at the same time. I used a piece of 18 gauge wire into a 1/8" hole to keep it where I wanted it. Bend it around the loom and then just bend the ends over. That makes it appear that nothing is holding the loom in position! It measures about 3/8" OD.