MANUAL DE SERVICIO DE LA NBT40
Tabla 1-3 Serie métrica con roscas gruesas – Con recubrimiento de zinc
Designación de serie,
roscas por pulgadas y
tamaño nominal
M4x0.7
M5x0.8
M6x1.0
M8x1.25
M10x1.5
M12x1.75
M14x2
M16x2
M18x2.5
M20x2.5
M22x2.5
M24x3
National Crane
Categoría de
propiedades
Máximo
10.9
3.6
12.9
4.2
10.9
7.2
12.9
8.4
8.8
8.3
10.9
12.2
12.9
14.3
8.8
20.2
10.9
29.6
12.9
34.7
8.8
40.0
10.9
58.7
12.9
68.7
8.8
69.7
10.9
102.4
12.9
119.8
8.8
111.4
10.9
163.6
12.9
191.5
8.8
172.8
10.9
253.8
12.9
296.9
8.8
246.2
10.9
350.7
12.9
410.4
8.8
348.0
10.9
495.6
12.9
580.0
8.8
474.4
10.9
675.7
12.9
790.7
8.8
601.3
10.9
856.4
12.9
1002.2
Published 7-01-2021, Control # 287-13
Par de apriete (Nm)
Nominal
Mínimo
3.5
3.4
4.1
4.0
7.0
6.8
8.2
8.0
8.1
7.9
11.9
11.6
13.9
13.6
19.7
19.2
28.9
28.2
33.8
33.0
39.0
38.0
57.2
55.8
67.0
65.3
68.0
66.2
99.8
97.2
116.8
113.8
108.6
105.8
159.5
155.4
186.7
181.9
168.5
164.1
247.4
241.1
289.5
282.1
240.1
233.9
341.9
333.2
400.1
389.9
339.3
330.6
483.2
470.8
565.5
551.0
462.6
450.7
658.8
641.9
770.9
751.2
586.3
571.3
835.0
813.6
977.1
952.1
INTRODUCCIÓN
1
10
1-11