M27 – Thickness: 4.0mm | OD: 50mm | ID: 28mm. M22 – Thickness: 3.0mm | OD: 39mm | ID: 23mm. M18 – Thickness: 3.0mm | OD: 34mm | ID: 19mm. M14 – Thickness: 2.5mm | OD: 28mm | ID: 15mm. M16 – Thickness: 3.0mm | OD: 30mm | ID: 17mm.
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