I think Ben said he ran them for 2 years on his old wheels so its probably not the issue here, but remember that lockright if it does its job just holds the nut in position on the stud or bolt. All studs/ bolts/ etc elongate when torqued, which is what provides the clamping force. There is always some plastic deformity that occurs in high torque situations on new studs. This is commonly noticed when putting on brand new u-bolts, well if you can remember back to the leaf spring days.... ;D
Anyway, glad you are ok Ben...talk about worse case scenario, hwy speeds and the front wheel!