MANUAL DE SERVICIO CD20
Tabla 1-2
Serie de pulgadas con roscas gruesas (UNC) — Con recubrimiento de zinc
Designación de serie,
roscas por pulgadas y
tamaño nominal
1/4-20 UNC
5/16-18 UNC
3/8-16 UNC
7/16-14 UNC
1/2-13 UNC
9/16-12 UNC
5/8-11 UNC
3/4-10 UNC
7/8-9 UNC
1-8 UNC
1 1/8-7 UNC
1 1/4-7 UNC
1 3/8-6 UNC
1 1/2-6 UNC
Par de apriete (lb-pie)
Grado
Máximo
5
6.6
8
9.3
5
13.5
8
19.1
5
24.0
8
33.9
5
38.4
8
54.3
5
58.6
8
82.8
5
84.5
8
119.4
5
116.6
8
164.8
5
206.8
8
292.3
5
333.8
8
471.6
5
500.3
8
707.0
5
624.0
8
1001.4
5
880.5
8
1413.1
5
1154.5
8
1852.8
5
1532.0
8
2458.8
Published 09-11-2018, Control# 622-01
Nominal
Mínimo
6.4
6.2
9.0
8.8
13.2
12.8
18.6
18.1
23.4
22.8
33.1
32.2
37.4
36.5
52.9
51.5
57.1
55.7
80.7
78.6
82.4
80.3
116.5
113.5
113.7
110.8
160.7
156.6
201.7
196.5
284.9
277.6
325.4
317.1
459.8
448.0
487.8
475.3
689.3
671.6
608.4
592.8
976.4
951.4
858.5
836.5
1377.8
1342.5
1125.6
1096.7
1806.5
1760.2
1493.7
1455.4
2397.3
2335.8
INTRODUCCIÓN
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