The 2.4 series thread mated connectors with characteristic impedance 50Ù are used for millimeter wave applications, connecting with RF cables or microstrips. The operating frequency limit is up to 50GHz. These connectors can be intermated with 1.85mm (IEC 61169-32 and IEEE Std 287-2007) connectors. This sectional specification provides information and rules for preparation of detail specification of 2.4 series R.F connectors together with the pro-forma blank detail specification. It also prescribes mating face dimensions for high performance connectors grade 1, dimensional detail of standard test connectors grade 0, gauging information and tests selected from IEC 61169-1 applicable to all detail specifications relating to 2.4 series RF connectors. This specification indicates recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H. Note: Metric dimension are original dimensions. All undimensioned pictorial configurations are for reference purpose only.