7/8" clamp connector for dishwasher - DoItYourself May 23, 2011Electrical - AC & DC - 7/8" clamp connector for dishwasher - We're in the home stretch of our kitchen remodel but we still keep running into weird little things that hold us up. The latest is 7/8" clamp connector for dishwasher - DoItYourself.com Community Forums 7/8 inch strain relief? - Appliance Repair Blog Forums Sep 15, 2012Model Number: 665. Brand: Sears Kenmore. Age: Less than 1 year. Hi All. I bought a Kenmore dishwasher earlier this year, and just installing it now. The manual calls for a 7/8 inch strain relief for the terminal box for wiring (model is hard wired).