I have the older style black EQ6 and once loaded with the OTA and balance weights the bolts are indeed difficult to turn. They can also end up bent. They need to work together - loosen one - tighten the other, but you shouldn't need to move them much if you set your latitude as close as possible before adding the OTA etc.
Its recommended to replace them with stainless hex bolts or custom made with handles.
Pictures you were referring to
http://www.iceinspace.com.au/forum/s...ad.php?t=39806
One local supplier
http://www.starstuff.com.au/eqaccessories.html