H&S W3243, Operator'S Manual

Page: 16 / 36

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CAP SCREW TORQUE VALUES
The specifications below are the torque values for fasteners as it adheres to the SAE torque value
standards. All fasteners should be torqued to the proper values found in the figures below unless
otherwise specified by the engineering drawing.
• Lubed torque would be any fastener that has grease, liquid Loctite, oil, etc. on the threads.
• Dry torque would be any fastener which has threads that are clean and dry and do not have any liquid
Loctite or grease on them.
Hex Head Fasteners
The figure shown below shows how to determine what SAE grade a fastener is.
0, 1 & 2 3 5 6 7 8
SUGGESTED ASSEMBLY TORQUE VALUES WORKING TORQUE
SAE GR. 2-6 SAE GR. 5 SAE GR. 8 18-8
SS
316
SS
Brass Silicon
Bronze
Dia. &
Thrds.
per
inch
Dry
Ft.
Lbs.
Lube
Ft.
Lbs.
Dry
Ft.
Lbs.
Lube
Ft.
Lbs.
Dry
Ft.
Lbs.
Lube
Ft.
Lbs.
Inch
Lbs.
Inch
Lbs.
Inch
Lbs.
Inch
Lbs.
1/4-20
1/4-28 5.5
6.3 4.2
4.7 8
10
6.3
7.2 12
14 9
10
75.2
94.0 78.8
99.0 61.5
77.0 68.6
87.0
5/16-20
5/16-28 11
12
8
9 17
19 13
14 24
27 18
20 132
142 138
147 107
116
123
131
3/8-16
3/8-24 20
23 15
17 30
35 23
25 45
50 35
35 236
259 247
271 192
212 219
240
7/16-14
7/16-20 32
36 24
27 50
55 35
40 70
80 50
60 376
400 393
418 317
327 349
371
1/2-13
1/2-20 50
55 35
40 75
85 55
65 110
120
80
90 517
541 542
565 422
443 480
502
9/16-12
9/16-18 70
80 55
60 110
120
80
90 150
170 110
130
682
752 713
787 558
615 632
697
5/8-11
5/8-18
100
110
75
85 150
170 110
130
210
240 160
180 1110
1244
1160
1301
907
1016
1030
1154
3/4-10
3/4-16 175
200 130
140 260
300 200
220 380
420 280
310 1530
1490 1582
1558 1249
1220 1416
1382
7/8-9
7/8-14
170
180 125
140 430
470 320
350 600
670 450
500 2328
2318 2430
2420 1905
1895 2140
2130
1-8
1-14
250
280 190
210 640
720 480
540 910
1020
680
760 3440
3110
3595
3250 2815
2545 3185
2885