M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, Nylon Flat Plastic Washers DIN 125. NYLON WASHERS FORM A FLAT PLASTIC WASHER. washers are the standard form A pattern (most common). Stated sizes (M ) are the bolt size which the washers fit; Hence the hole sizes are slightly larger to allow clearance.
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