Tabla de contenido
TORNILLERÍA CON BRIDA (SIST. IMPERIAL)
ME-
DIDA
PERNO Y TUERCA SAE
NOMI-
DE GRADO 5
NAL
PLATA
CHAPADA
o SIN
CHAPAR
9 N·m (80 lb in)
1/4
19 N·m (168 lb
5/16
in)
33 N·m (25 lb
3/8
ft)
53 N·m (39 lb
7/16
ft)
81 N·m (60 lb
1/2
ft)
117 N·m (86 lb
9/16
ft)
162 N·m (119 lb
5/8
ft)
287 N·m (212 lb
3/4
ft)
462 N·m (341 lb
7/8
ft)
693 N·m (512 lb
1
ft)
IDENTIFICACIÓN
Pernos y tuercas locas en pulgadas
1
Grado 2: sin marcas
2
Grado 5: sin marcas
3
Grado 8: cinco marcas
9 - CARACTERÍSTICAS TÉCNICAS
PERNO Y TUERCA SAE
PLATA
ORO
CHAPADA
CHAPADO
o SIN
EN ZnCr
CHAPAR
12 N·m (106 lb
13 N·m (115 lb
in)
25 N·m (221 lb
26 N·m (230 lb
in)
44 N·m (33 lb
47 N·m (35 lb
ft)
71 N·m (52 lb
75 N·m (55 lb
ft)
108 N·m (80 lb
115 N·m (85 lb
ft)
156 N·m
165 N·m
(115 lb ft)
(122 lb ft)
216 N·m
228 N·m
(159 lb ft)
(168 lb ft)
383 N·m
405 N·m
(282 lb ft)
(299 lb ft)
617 N·m
653 N·m
(455 lb ft)
(482 lb ft)
925 N·m
979 N·m
(682 lb ft)
(722 lb ft)
Ejemplos sobre las marcas de grado
Identificación de grado SAE
DE GRADO 8
ORO
CHAPADO
EN ZnCr
17 N·m (150 lb
in)
in)
35 N·m (310 lb
in)
in)
63 N·m (46 lb
ft)
ft)
100 N·m (74 lb
ft)
ft)
153 N·m
ft)
(113 lb ft)
221 N·m
(163 lb ft)
304 N·m
(225 lb ft)
541 N·m
(399 lb ft)
871 N·m
(642 lb ft)
1305 N·m
(963 lb ft)
3
20083682
4
Tuerca de grado 2: sin marcas
5
Tuerca de grado 5: marcas de 120 °
6
Tuerca de grado 8: marcas de 60 °
9-25
CONTRA-
CONTRA-
TUERCA GrF
TUERCA GrG
con PERNO
con PERNO
Gr5
12 N·m (106 lb
8 N·m (71 lb in)
17 N·m (150 lb
24 N·m (212 lb
in)
30 N·m (22 lb ft) 43 N·m (32 lb ft)
48 N·m (35 lb ft) 68 N·m (50 lb ft)
104 N·m (77 lb
74 N·m (55 lb ft)
157 N·m (116 lb
106 N·m (78 lb ft)
147 N·m (108 lb
207 N·m (153 lb
ft)
261 N·m (193 lb
369 N·m (272 lb
ft)
421 N·m (311 lb
594 N·m (438 lb
ft)
631 N·m (465 lb
890 N·m (656 lb
ft)
Gr8
in)
in)
ft)
ft)
ft)
ft)
ft)
ft)
Tabla de contenido
