JIS B 1181 Hexagon Nuts
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Standards
BS 1768
Table 4A
Table 4A — Comparison of strength grades of BS 1768 and BS 970 (for guidance only)
Grade
Tensile strength
BS 1768
BS 970-1:1983
min.
min.
tonf/m²
N/mm²
N/mm²
P
35
541
550 – 700
S
50
772
775 – 925
T
55
849
850 – 1 000
V
65
1 004
1 000 – 1 150
X
75
1 158
1 150 – 1 300