This D shackle is made from high quality AISI 316 forged stainless steel. (No cheap cast variant! ).This D shackle has a captive bolt! You will receive a high-quality product, which is naturally resistant to sea water and UV rays. The high breaking load value is due to the very good workmanship of the forged stainless steel. Completely rust-proof Dimensions: length (L): 60 mm, shackle opening (W): 16 mm, material thickness (D): 8 mm, breaking load: 3200 kg.