if your gonna go the nut & bolt way then.....
take off the underside of the dash. on the pedal box you will see a small hole at the top of the clutch pedal. insert the bolt (with one nut already on it) from behind and then stick on the other nut and tightening up
you'll have to adjust the nut behind in order to get your set height. also the bolt head should be resting against the clutch pedal