GENERAL INSTRUCTIONS
TMS9000-2 SERVICE MANUAL
1-12
Published 01-14-2021 Control # 707-01
Table 1-2
Inch Series with Fine Threads (UNF) – Zinc Flake Coated
Table 1-3
Metric Series with Coarse Threads – Zinc Flake Coated
Nominal Size, Threads per
Inch, and Series
Designation
Grade
Torque (ft/lb)
Maximum
Nominal
Minimum
1/4-28 UNF
5
7.5
7.3
7.1
8
10.6
10.4
10.1
5/16-24 UNF
5
15.0
14.6
14.2
8
21.1
20.6
20.1
3/8-24 UNF
5
27.2
26.5
25.8
8
38.4
37.5
36.5
7/16-20 UNF
5
42.9
41.8
40.7
8
60.6
59.1
57.6
1/2-20 UNF
5
66.0
64.4
62.7
8
93.3
90.9
88.6
9/16-18 UNF
5
94.3
91.9
89.6
8
133.2
129.9
126.6
5/8-18 UNF
5
132.1
128.8
125.5
8
186.7
182.0
177.3
3/4-16 UNF
5
231.0
225.2
219.4
8
326.4
318.2
310.1
7/8-14 UNF
5
367.7
358.5
349.3
8
519.6
506.6
493.6
1-12 UNF
5
547.4
533.7
520.0
8
773.5
754.2
734.8
1 1/8-12 UNF
5
700.0
682.5
665.0
8
1123.5
1095.4
1067.3
1 1/4-12 UNF
5
975.0
950.6
926.2
8
1564.8
1525.7
1486.5
1 3/8-12 UNF
5
1314.4
1281.5
1248.6
8
2109.5
2056.7
2004.0
1 1/2-12 UNF
5
1723.9
1680.8
1637.7
8
2766.8
2697.6
2628.4
Nominal Size, Threads per
Inch, and Series
Designation
Property
Class
Torque (Nm)
Maximum
Nominal
Minimum
M4x0.7
10.9
3.6
3.5
3.4
12.9
4.2
4.1
4.0
M5x0.8
10.9
7.2
7.0
6.8
12.9
8.4
8.2
8.0
Fo
r
Reference
Only