M2×3F
M2×3F is a designation that appears in various catalogs and product listings, but its exact meaning can vary by supplier. Generally, the sequence suggests a metric fastener with a nominal diameter near M2 and a length of 3 millimeters, while the trailing “F” is a nonstandard suffix that is not defined by a universal specification. Because the letter “F” is not standardized, it may denote a catalog-specific attribute such as head style, drive type, finish, or another internal code used by the manufacturer.
In mechanical fasteners, an M2 screw is a small-diameter component commonly used in electronics, hobbyist devices,
Because the suffix is not standardized, the prudent approach is to consult the specific datasheet or catalog
See also: metric screw, M2 fastener, fastener suffix notation, mechanical fasteners.