The Grade 80 oversized master link assemblies TWN 0816 are used to assemble 2-leg chain slings and are used with big crane hooks according to DIN 15401. The intermediate links enable the use of connecting links, e.g. THI-LOK® TWN 1320.
The dimensions comply with DIN 5688-3.
The manufacturing and testing requirements are based on the ASTM A952/A952M, DIN EN 1677 parts 1 and 4 and ISO 8539.