The Bow Shackle Square Head Pin High Tensile, also called square head bow shackle.
This bow shackle with square head pin is commonly used in the marine industry for trawling purposes during fishing expeditions.
The bow shackle with square head pin, made from high tensile steel, Grade 6, quenched and tempered.
Safety factor of square head pin bow shackle is MBL equals 6 x WLL
The standard of trawl bow shackle with square head pin is EN 13889 and meets performance requirements of US Fed. Spec. RR-C-271, Grade A