This British Standard specifies requirements for the design and performance of terminal blocks with studs 4 UNJC, 6 UNJC and 10 UNJF rolled threads for use with ring tongue terminal ends on aircraft cables.
BS 3G 197:1982 history
0000 BS 3G 197:1982(1999)
1982BS 3G 197:1982 Specification for stud-type terminal blocks for terminations on aircraft electric cables