Maintenance
Assembly references
Maximum torque values for fasteners
Lubricated values are 2/3 of the unlubricated values.
Fastener size
(diameter in
inches) –
threads per inch
2210 material ft-lb (Nm)
2229 material ft-lb (Nm)
2239 material ft-lb (Nm)
Lub.
Unlub.
Lub.
Unlub.
Lub.
Unlub.
3/8 –16
6 (9)
9 (13)
11 (15)
17 (23)
18 (25)
27 (37)
7/16 –14
10 (14)
15 (21)
18 (25)
27 (37)
29 (40)
44 (59)
1/2 –13
15 (21)
23 (31)
27 (37)
41 (55)
44 (60)
66 (90)
9/16 –12
22 (30)
33 (45)
39 (53)
59 (80)
63 (86)
95 (129)
5/8 –11
30 (41)
45 (62)
54 (74)
81 (110)
87 (118)
131 (177)
3/4 –10
53 (72)
80 (108)
66 (90)
99 (135)
154 (209)
231 (314)
7/8 –9
85 (116)
128 (173)
106 (144)
159 (216)
248 (337)
372 (505)
1 –8
128 (174)
192 (261)
159 (216)
239 (324)
371 (504)
557 (755)
1-1/4 –8
N/A
N/A
N/A
N/A
766 (1039)
1149 (1558)
1-3/8 –8
N/A
N/A
N/A
N/A
1039 (1409)
1559 (2114)
1-1/2 –8
N/A
N/A
N/A
N/A
1371 (1859)
2057 (2789)
1-3/4 –8
N/A
N/A
N/A
N/A
2230 (3024)
3345 (4536)
2-1/8 –8
N/A
N/A
N/A
N/A
4100 (5559)
6150 (8339)
2-1/2–8
N/A
N/A
N/A
N/A
6799 (9219)
10199 (13828)
94
Model 3610, API Type BB1 API 610 11th Edition Installation, Operation, and Maintenance Manual