10 pack of M4 M5 M6 M7 M8 to M20 Metric Flat Washers Form A Bright Zinc Plated

M8 – Thickness: 1.6mm | OD: 16mm | ID: 8.4mm. M4 – Thickness: 0.8mm | OD: 9mm | ID: 4.3mm. M20 – Thickness: 3.0mm | OD: 37mm | ID: 21mm. M6 – Thickness: 1.5mm | OD: 12mm | ID: 6.4mm. M5 – Thickness: 1.0mm | OD: 10mm | ID: 5.3mm.

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