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TM 10-5430-236-12&P
0036 00
0036 00-1
OPERATOR AND UNIT MAINTENANCE
COLLAPSIBLE FABRIC TANK, PETROLEUM, 3,000, 10,000, AND 20,000 GALLON
TORQUE LIMITS
TORQUE LIMITS
This work package provides general torque limits for fasteners. Special torque values are indicated in the
maintenance procedures for applicable components. Special torque values are established using the
torque sequence in this work package. The general torque values given in this work package shall be
used when specific torque values are not indicated in the maintenance procedures.
Torque Limits
Torque limits are listed in Table 1 for fasteners. Dry fasteners are defined as fasteners on which no
lubricants are applied to the threads. Wet fasteners are defined as fasteners on which graphite or
molydisulphide greases or other extreme pressure lubricants are applied to the threads. Table 2 lists the
minimum breakaway torque values for locknuts.
Table 1. General Torque Requirements for Dry Fasteners*
Torque Requirements in ft-lb (Nm)
Bolt/Screw
Size
SAE Grade
1 or 2
SAE Grade
5
SAE Grade
6 or 7
SAE Grade
8
1/4-20 UNC
5 (7)
8 (11)
10 (14)
12 (16)
1/4-28 UNF
7 (8)
10 (14)
12 (16)
14 (19)
5/16-UNC
11 (15)
17 (23)
19 (26)
24 (33)
5/16-24 UNF
13 (18)
19 (26)
23 (31)
27 (37)
3/8-16 UNC
18 (24)
31 (42)
34 (46)
44 (60)
3/8-24 UNF
20 (27)
35 (47)
42 (57)
49 (66)
7/16-14 UNC
28 (38)
49 (66)
55 (75)
70 (95)
7/16-20 UNF
30 (41)
55 (75)
67 (91)
78 (106)
1/2-13 UNC
39 (53)
75 (102)
85 (115)
105 (142)
1/2-20 UNF
41 (56)
85 (115)
102 (138)
120 (163)
9/16-12 UNC
51 (69)
110 (149)
120 (163)
155 (210)
9/16-18 UNF
55 (75)
120 (163)
145 (197)
170 (231)
5/8-11 UNF
63 (85)
150 (203)
167 (226)
210 (285)
5/8-18 UNF
95 (129)
170 (231)
205 (278)
240 (325)
3/4-10 UNC
105 (142)
270 (366)
280 (380)
375 (509)
3/4-16 UNF
115 (156)
295 (400)
357 (484)
420 (750)
7/8-9 UNC
160 (217)
395 (536)
440 (597)
605 (820)
7/8-14 UNF
175 (237)
435 (590)
555 (753)
675 (915)
1-8 UNC
235 (319)
590 (800)
660 (895)
910 (1234)
1-4 UNF
250 (339)
660 (865)
825 (1119)
999 (1342)
1-1/8-7 UNC
350 (475)
800 (1085)
1000 (1356)
1280 (1736)
1-1/8-12 UNF
400 (542)
880 (1193)
1050 (1424)
1440 (1953)
1-1/4-7 UNC
500 (678)
1080 (1464)
1325 (1797)
1820 (2468)
1-1/4-12 UNF
550 (746)
1125 (1526)
1325 (1797)
1820 (2712)
1-3/8-6 UNC
660 (895)
1460 (1980)
1800 (2441)
2380 (3227)
1-3/8-12 UNF
740 (1003)
1680 (2278)
1960 (2658)
2720 (3688)
1-1/2-6 UNC
870 (1180)
1940 (2631)
2913 (3950)
3160 (4285)
1-1/2-12 UNF
980 (1329)
2200 (2983)
3000 (4068)
3560 (4827)
* Torque given is for clean, dry threads. Reduce by 10% when engine oil is used as lubricant.
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