The grade 80 oversized master link assemblies TWN 0815 are used to assemble 1-leg chain slings and are used with big crane hooks according to the DIN 15401. The intermediate links enable the use of connecting links, e.g. THI-LOK® TWN 1320.
The dimensions comply with the DIN 5688-3. The manufacturing and testing requirements are based on the DIN EN 1677 parts 1 and 4.