I assume you are talking about the little screws that pinch the wire on the spreader tips. I would loosen them and keep an eye on how much adjusting the tension on the diamonds deflects the spreaders. you will have to bang them up or down the diamonds a little to recenter them after you have changed the tension. I went through this on my 6.0 but there was no captive mechanism - other than a slot- on the spreader tips. After it was all set, you use seizing wire.