U.S. STANDARD TORQUE VALUES

Fastener Tensile Strength
170,000/180,000
PSI
(1,171 Nmm2
)
190,000/200,000
PSI
(1,309 Nmm2
)
220,000 PSI
(1,515 Nmm2
)
Fastener Diameter
Torque
ARP lube
(ft-lbs)
Preload (lbs)
Torque
ARP lube
(ft-lbs)
Preload (lbs)
Torque
ARP lube
(ft-lbs)
Preload (lbs)
1/4"
12
3,492
14
3,967
16
4,442
5/16"
24
5,805
28
6,588
32
7,371
3/8"
45
8,622
50
9,782
55
10,942
7/16"
70
11,880
80
13,470
90
15,060
1/2"
110
16,391
125
18,515
140
20,639
9/16"
160
21,220
180
23,944
200
26,668
5/8"
210
26,372
240
29,756
270
33,140
6mm
11
3,359
13
3,814
15
4,269
8mm
24
5,801
28
6,581
32
7,361
10mm
54
9,970
62
11,305
70
12,640
11mm
72
12,184
82
13,961
92
15,738
12mm
98
14,472
112
16,949
125
19,425
14mm
N/A
N/A
184
22,771
205
25,730
16mm
N/A
N/A
244
29,664
272
33,519