23.5.1 Working Load Limits

Table 1. Working Load Limit of Imperial threaded rigging screws and turnbuckles

Thread Diameter (Inches)

Working Load Limit (Tonnes)

0.375

0.45

0.5

0.5

0.625

0.75

0.75

1.2

0.875

1.7

1.0

2.2

Table 2. Working Load Limit of Metric threaded rigging screws and turnbuckles

Thread Diameter (mm)

Working Load Limit (Tonnes)

10

0.3

12

0.5

16

0.75

20

1.25

22

2.0

27

3.0