M4, M5, M6, M8 & M10. Countersunk head for flush fit. M8 - DRILL HOLE SIZE 11.10mm. M8 /8mm 18.5mm 13.5mm 1.5mm 1.25 2mm - 4.5mm. M10 - DRILL HOLE SIZE 13.10mm. M4 - DRILL HOLE SIZE 6.10mm. M4 / 4mm 11mm 8.5mm 1.5mm 0.7 1.5mm - 3mm.
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