Fastener Torque Requirements
PELLERIN MILNOR CORPORATION
Table 12: Torque Values for Stainless Steel Fasteners Larger Than 5/16-inch
316 Stainless
18-8 Stainless
18-8 Stainless with
Loctite 767
Bolt Size
Pound-feet
N-m
Pound-feet
N-m
Pound-feet
N-m
3/8 x 16
21
28
20
27
12
16
3/8 x 24
23
31
22
29
13
18
7/16 x 14
33
44
31
42
19
25
7/16 x 20
35
47
33
45
20
27
1/2 x 13
45
61
43
58
26
35
1/2 x 20
47
64
45
61
27
37
9/16 x 12
59
81
57
77
34
46
9/16 x 18
66
89
63
85
38
51
5/8 x 11
97
131
93
125
56
75
5/8 x 18
108
150
104
141
62
84
3/4 x 10
132
179
128
173
77
104
3/4 x 16
130
176
124
168
75
101
7/8 x 9
203
275
194
263
116
158
7/8 x 14
202
273
193
262
116
157
1 x 8
300
406
287
389
172
233
1 x 14
271
367
259
351
156
211
1-1/8 x 7
432
586
413
560
248
336
1-1/8 x 12
408
553
390
529
234
317
1-1/4 x 7
546
740
523
709
314
425
1-1/4 x 12
504
683
480
651
288
390
1-1/2 x 6
930
1261
888
1204
533
722
1-1/2 x 12
732
992
703
953
422
572
2.
Preparation
WARNING 1 : Fire Hazard
—Some solvents and primer products are flammable.
• Use in a well ventilated area.
• Do not use flammable products near ignition sources.
1. Clean all threads with a wire brush, a tap, or a die.
2. Degrease the fasteners and the mating threads with a cleaning solvent. Wipe the parts dry.
Note 2:
LocTite 7649 Primer N
™
will remove grease from parts, but it costs more than a standard
organic or petroleum solvent.
3. Prime the fasteners and the mating threads with LocTite 7649 Primer N
™
or equal. Allow the
primer to dry for at least one minute.
3.
Application of Threadlocking Compound
CAUTION 2 : Malfunction Hazard
—Improper application of threadlocking compounds may
result in fasteners becoming loose from impact, heat, or vibration. Loose fasteners can cause the
equipment to malfunction.
• Read and follow the threadlocking compound manufacturer's instructions and warnings.
27
Summary of Contents for 36021C4E
Page 2: ......
Page 23: ...Service and Maintenance 1 19 ...
Page 34: ......
Page 35: ...Drive Assemblies 2 31 ...
Page 40: ......
Page 41: ...Bearing Assemblies 3 37 ...
Page 46: ......
Page 47: ...Shell and Door Assemblies 4 43 ...
Page 56: ......
Page 57: ...Control and Sensing 5 53 ...
Page 64: ......
Page 65: ...Chemical and Supply Devices 6 61 ...
Page 67: ...Water Piping Assemblies 7 63 ...