This standard specifies plug-in connectors (hereinafter referred to as connectors) used to connect wiring and cords, or to connect cords to each other, in electrical circuits with a frequency of 50Hz or 60Hz and 250V AC or less. However, the operating ambient temperature shall be 40°C or less.
JIS C 8303:2007 Referenced Document
JIS B 0205-1 ISO general purpose metric screw threads -- Part 1: Basic profile
JIS B 0205-2 ISO general purpose metric screw threads -- Part 2: General plan
JIS B 0205-3 ISO general purpose metric screw threads -- Part 3: Selected sizes for screws, bolts and nuts