23.8.1 Marking

In addition to the information required by the applicable supply legislation, rigging screws and turnbuckles used for lifting purposes should be marked with the following information.

  1. Working load limit.

  2. Identification mark traceable to the manufacturer’s / supplier’s documentation.

  3. Manufacturer’s name or identification.

  4. Traceability code on all load bearing components, i.e. body, eyes, hooks, forks, etc.

  5. Year of manufacture

Note

Some products are still manufactured with the WLL marked in hundredweights (cwts). Few people are now familiar with these units so, to avoid possible confusion, LEEA strongly recommends that such products are re-marked in the weights and measures system of the country of use.

The marking should be in the specific areas shown in the following illustrations:

Figure 23.8.1-1 Marking of a rigging screw

Figure 23.8.1-2 Marking of a turnbuckle