A2 Stainless Steel Penny Washers Repair Mudguard Washer. M10 x 30mm - M10 ~ 10.5mm i/d ~ 30mm o/d ~ 2.5mm thick. M3 M4 M5 M6 M8 M10. M3 x 9mm - M3 ~ 3.2mm i/d ~ 9mm o/d ~ 0.8mm thick. M3 x 12mm - M3 ~ 3.2mm i/d ~ 12mm o/d ~ 0.8mm thick.
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