T-Slot Clamps - McMaster-Carr

T-Slot Clamp Kits - t slot clamping kit I worry that if I tighten the nuts too much I might risk breaking out the table T slot What is the proper way to use one of these kits? Should temple of ausar online slot I like the machinists clamp style hold-downs, but I'm not sure which set is the correct size Anyone know how T-slots are measured?

the first slot machine THIS IS A VERY NICE SET MADE FROM HIGH QUALITY HEAT TREATED BLACKED STEEL, IDEAL FOR ANYONE WITH A SMALL MILLING MACHINE THREAD SIZE IS 8MM