Manitowoc National Crane 1300A - Page 19

National Crane 01-22-2019 Control # 051-08 1-9
1
1300A INTRODUCTION
1 1/8-7 UNC
5 624.0 608.4 592.8
8 1001.4 976.4 951.4
1 1/4-7 UNC
5 880.5 858.5 836.5
8 1413.1 1377.8 1342.5
1 3/8-6 UNC
5 1154.5 1125.6 1096.7
8 1852.8 1806.5 1760.2
1 1/2-6 UNC
5 1532.0 1493.7 1455.4
8 2458.8 2397.3 2335.8
Table 1-1 Inch Series with Coarse Threads (UNC) – Zinc Flake Coated (Continued)
Nominal Size, Threads per
Inch, and Series
Designation
Grade
Torque (ft/lb)
Maximum Nominal Minimum
Table 1-2 Inch Series with Fine Threads (UNF) – 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