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, and compact assemblies. The common thread pitch for metric M2 screws is 0.4 mm, but pitch can vary by manufacturer or product line. The M2×3F part could correspond to a complete screw with a particular head type (for example, pan, button, or flat/countersunk) and a specific drive (such as slotted, hex, or Torx), but these details are not implied by the designation alone. Therefore the exact head, drive, material, and finish are not universally implied by “M2×3F.”

Because the suffix is not standardized, the prudent approach is to consult the specific datasheet or catalog entry for the part in question. Verify the thread form and pitch, length, head style, drive type, material, and finish to ensure compatibility with the intended application. If in doubt, contact the supplier or compare against a known reference part to confirm the precise specifications.

See also: metric screw, M2 fastener, fastener suffix notation, mechanical fasteners.