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TM 55-8145-221-14&P
0080 00-1
REFRIGERATED CONTAINER SYSTEM
TORQUE LIMITS
0080 00
USAGE
MUCH USED
MUCH USED
USED AT TIMES
USED AT TIMES
To ½ - 69,000
(4850.7000)
To ¾ - 120,000
(8436.0000)
To 5/8 – 140,000
(9842.0000)
150,000
(10545.0000)
CAPSCREW DIAMETER
AND MINIMUM TENSILE
STRENGTH
psi (KG/SQ CM)
To ¾ - 64,000
(4499.2000)
To 1 – 115,000
(8084.5000)
To ¾ - 133.000
(9349.9000)
To 1 – 55, 000
(3865.5000)
QUALITY OF MATERIAL
INDETERMINATE
MINIMUM
COMMERCIAL
MEDIUM
COMMERCIAL
BEST
COMMERCIAL
SAE GRADE NUMBER
1 or 2
5
6 or 7
8
CAPSCREW HEAD
MARKINGS
Manufacturer's marks may very.
These are all SAE Grade S
(34ine)
CAPSCREW BODY SIZE
TORQUE
TORQUE
TORQUE
TORQUE
(INCHES)-(THREAD)
FT-LB
(KG M)
FT-LB
(KG M)
FT-LB
(KG M)
FT-LB
(KC M)
1/4-20
5
(0.6915)
8
(1.1064)
10
(1.3830)
12
(1.6596)
-28
6
(0.8293)
10
(1.3830)
14
(1.9362)
5/16-18
11
(1.5213)
17
(2.3511)
19
(2.6277)
24
(3.3192)
-24
13
(1.7979)
19
(2.6277)
27
(3.7341)
3/8-16
18
(2.4894)
31
(4.2873)
34
(4.7022)
44
(6.0852)
-24
20
(2.7660)
35
(4.8405)
49
(6.7767)
7/16-14
28
(3.8132)
49
(6.7767)
55
(7.6065)
70
(9.6810)
-20
30
(4.1490)
55
(7.6065)
78
(10.7874)
1/2-13
39
(5.3937)
75
(10.3725)
85
(11.7555)
10S
(14.5215)
-20
41
(5.6703)
85
(11.7555)
120
(16.5960)
9/16-12
S1
(7.0533)
110
(15.2120)
120
(16.5960)
155
(21.4365)
-18
55
(7.6065)
120
(16.5960)
170
(23.5110)
5/8-11
83
(1l.4769)
150
(20.7450)
167
(23.0961)
210
(29.0430)
-18
95
(13.1385)
170
(23.5110)
240
(33.1920)
3/4-10
105
(14.5215)
270
(37.3410)
280
(38.7240)
375
(51.6625)
-16
115
(15.9045)
295
(40.7985)
420
(58.0860)
7/8-9
160
(22.1280)
295
(54.6285)
44.0
(60.8520)
605
(83.6715)
-14
175
(24.2025)
435
(60.1605)
675
(93.3525)
1-8
235
(32.5005)
590
(81.5970)
660
(91.2780)
910
(125.8530)
-14
250
(34.5750)
660
(91.2780)
990
(136.9170)
1.
Always use the torque values listed above when specific specifications are not available.
NOTE
Do not use above values in place of those specified in this manual. Special attention
should be observed in case of SAE Grade 6, 7 and 8 capscrews.
2.
The above is based on use of clean and dry threads.
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