TM-9-2320-272-23-5
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 5 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-5 - Page 443 of 623
Table
1.
Torque Limits for Dry Fasteners.
SIZE
TORQUE
SAE GRADE
NO. 1 or 2
M9864DAA
SAE GRADE
NO. 5
M9866DAA
SAE GRADE
NO. 6 or 7
M9868DAA
SAE GRADE
NO. 8
M9870DAA
DIAMETER
IN.
THREADS
PER INCH
DIAMETER
MM
LB-FT (N·M)
LB-FT (N·M)
LB-FT (N·M)
LB-FT (N·M)
1/4
20
6.35
5 (6.78)
8 (10.85)
10 (13.56)
12 (16.27)
1/4
28
6.35
6 (8.14)
10 (13.56)
----------
14 (18.98)
5/16
18
7.94
11 (14.92)
17 (23.05)
19 (25.76)
24 (32.54)
5/16
24
7.94
13 (17.63)
19 (25.76)
----------
27 (36.61)
3/8
16
9.53
18 (24.41)
31 (42.04)
34 (46.10)
44 (59.66)
3/8
24
9.53
20 (27.12)
35 (47.46)
----------
49 (66.44)
7/16
14
11.11
28 (37.97)
49 (66.44)
55 (74.58)
70 (94.92)
7/16
20
11.11
30 (40.68)
55 (74.58)
----------
78 (105.77)
1/2
13
12.70
39 (52.88)
75 (101.70)
85 (115.26)
105 (142.38)
1/2
20
12.70
41 (55.60)
85 (115.26)
----------
120 (162.72)
9/16
12
14.29
51 (69.16)
110 (149.16)
120 (162.72)
155 (210.18)
9/16
18
14.29
55 (74.58)
120 (162.72)
----------
170 (230.52)
5/8
11
15.88
63 (85.43)
150 (203.40)
167 (226.45)
210 (284.76)
5/8
18
15.88
95 (128.82)
170 (230.52)
----------
240 (325.44)
3/4
10
19.05
105 (142.38)
270 (366.12)
280 (379.68)
375 (508.50)
3/4
16
19.05
115 (155.94)
295 (400.02)
----------
420 (569.52)
7/8
9
22.23
160 (216.96)
395 (535.62)
440 (596.64)
605 (820.38)
7/8
14
22.23
175 (237.30)
435 (589.86)
----------
675 (915.30)
TM 9-2320-272-23-5
0821
0821-4
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