Hexagon nuts for structural bolting with large width across flats, style 1, grade B, class 10

Standard GB/T 18230.4 - 2000
Description Hexagon nut for structural bolting with large width across flats, style 1, grade B, class 10 GB/T 18230.4 M12
Part number GB/T 18230.4 M12
Product selection
Selector Ref D m (mm) s (mm) P (mm)
1 GB/T 18230.4 M12 M12 10.8 21 1.75
2 GB/T 18230.4 M16 M16 14.8 27 2
3 GB/T 18230.4 M20 M20 18 34 2.5
4 GB/T 18230.4 M22 M22 19.4 36 2.5
5 GB/T 18230.4 M24 M24 21.5 41 3
6 GB/T 18230.4 M27 M27 23.8 46 3
7 GB/T 18230.4 M30 M30 25.6 50 3.5
8 GB/T 18230.4 M36 M36 31 60 4
Ref
D
m (mm)
s (mm)
P (mm)