Just go to a hardware store or possibly home depot and buy some allen head/socket head M6x1.00 bolts and use them instead of studa and put a dab of blue loctite or simular blue thread locker on them, I 've done this many times, just remember not to overtighten the bolts, the 6mm bolts, studs and nuts cant take a lot of heavy torque so just get them tight but dont get rough with them or they'll break under the engine vibration.
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