INTRODUCCIÓN
Designación de serie, roscas
por pulgadas y tamaño nominal
M6 x 1.0
M8 x 1.25
M10 x 1.5
M12 x 1.75
M14 x 2
M16 x 2
M18 x 2.5
M20 x 2.5
M22 x 2.5
M24 x 3
M27 x 3
M30 x 3.5
1-12
Categoría de
propiedades
Máximo
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
8.8
881.6
10.9
1255.7
12.9
1469.4
8.8
1195.3
10.9
1702.5
12.9
1992.3
Published 1-21-2018 Control # 655-01
MANUAL DE SERVICIO DE LA NBT40-1
Par de apriete (Nm)
Nominal
Mínimo
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
859.6
837.5
1224.3
1192.9
1432.7
1395.9
1165.5
1135.6
1659.9
1617.3
1942.4
1892.6