Can somebody explain if the type of bolts I have just purchaed from GSF for a BX 1.7 td are correct. The bolts have torx heads but the thread extends the whole length of the bolt, which are the same as I removed. However in the Haynes manual it seems that on my vehicle I should use shretch bolts with the Torc head, which only have a thread for the lower third of the bolt. I guess once I definitely know what type then I have, I can use the correct tightening procedure, as they appear to differ.
Regards
Colin
Head Torx bolts
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