This Standard specifies the thread run-outs for external threaded fasteners having threads in accordance with ISO general purpose metric screw threads in JIS B 0205-2 and JIS B 0205-3.
It does not apply to those threaded fasteners where special requirements are laid down in the product standards.
NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows:
ISO 3508 : 1976 Thread run-outs for fasteners with thread in accor¬dance with ISO 261 and ISO 262 (MOD)
The symbols which denote the degree of correspondence in the con¬tents between the relevant International Standard and JIS are IDT (identicaI), MOD (modified), and NEQ (not equivalent) according to ISOIIEC Guide 21.