Isuzu A-4JB1 - Tightening Torque Specifications; Flanged Head Bolt

GENERAL INFORMATION
8
TIGHTENING TORQUE SPECIFICATIONS
The tightening torque values given in the table below are applicable to the bolts unless otherwise
specified.
FLANGED HEAD BOLT kgf·m (lb.ft/N·m)
M 6 × 1
0.5 – 0.9 0.6 – 1.2
(3.61 – 6.50/4.6
– 8.5 (4.33 – 8.67/5.88 – 11.76)
M 8 × 1.25
1.1
– 2.0 1.4
– 2.9 1.9 – 3.4
(7.95
–
14.46/10.78 – 19.61) (4.33 – 8.67/5.88 – 11.76) (13.74 – 24.59/18.63 – 33.34)
M10 × 1.25
2.3
– 3.9 3.6 – 6.4 4.3 – 7.2
(17.35 – 28.20/23.53 – 38.24) (26.03 – 44.12/35.30 – 59.82) (31.10 – 52.07/42.16 – 70.60)
*M10 × 1.5
2.3
– 3.8 3.5 – 5.8 4.1 – 6.8
(16.63
– 27.48/22.55 – 37.26) (25.31 – 41.95/34.32 – 56.87) (29.65 – 49.18/40.20 – 66.68)
M12 × 1.25
5.6 – 8.4 7.9 – 11.9 8.7 – 13.0
(40.50
– 60.75/54.91 – 82.37) (57.14 – 86.07/77.47 – 116.69) (62.92 – 94.02/85.31 – 127.48)
*M12 × 1.75
3.5
– 9.5 7.3 – 10.9 8.1 – 12.2
(37.61 – 56.41/50.99 – 76.49) (52.80 – 78.83/71.58 – 106.89) (58.58 – 88.24/79.43 – 119.64)
M14 × 1.5
8.5
– 12.7 11.7 – 17.6 12.6 – 18.9
(61.48
– 91.85/83.35 – 124.54) (84.62 – 127.30/114.73 – 172.59) (91.13 – 136.70/123.56 – 185.34)
*M14 × 2
7.6 – 11.5 11.1 – 16.6 11.8 – 17.7
(57.14
– 85.34/77.47 – 115.71) (80.28 – 120.06/108.85 – 162.79) (85.34 – 128.02/115.71 – 173.57)
M16 × 1.5
11.8 – 17.7 17.1
– 26.5 18.0
– 27.1
(85.34
– 128.02/115.71 – 173.57) (125.85 – 189.50/170.63 – 256.93) (130.19 – 196.01/176.52 – 265.76)
*M16 × 2
11.2 – 16.7 16.6 – 24.9 17.2 – 25.7
(81.00
– 120.79/109.83 –
163.77) (120.06 –
180.10/162.79 – 244.18) (124.40 – 186.61/168.67 – 253.01)
A bolt with an asterisk (*) is used for female screws of soft material such as cast iron.
Bolt head
marking
Nominal
size
(dia. x pitch)