Saw a set of spreader clamps at a local hardware store, but they didn’t quite fit, so instead picked up:
which did fit, and when paired w/ a pair of M5 BHCSs and a pair of Nyloc M5 nuts and and some washers and nuts (M6 would be better, but I couldn’t arrange anything using that sort of hardware which would fit in the Hybrid T-tracks) and a stack of the stops from:
Be careful with that style of HF clamps @WillAdams. I’ve had a few of those loose clamping tension after just a few minutes of use. Remember, they’re cheap for a reason.
I have a bunch of the Irwin squeeze clamps and they just dont have the holding power of an F type clamp with a screw type clamp. I have found that the Irwin squeeze clamps are only for just holding things together and not for any forceful clamping. Hopefully yours work but I would be very suspect of them.