Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. Bow shackles are best for multidirectional loads. Their large interior opening allows plenty of articulation especially when attached to a round bail. 5mm Specs: Shackle pin Ø (mm)5 mm Weight (g)18 g A (mm)25 mm B (mm)10 mm C (mm)17 mm Maximum working load (kg)540 kg Breaking load (kg)1080 kg 6mm Specs: Shackle pin Ø (mm)6 mm Weight (g)29.5 g A (mm)27 mm B (mm)14 mm C (mm)19 mm Maximum working load (kg)750 kg Breaking load (kg)1500 kg 8mm Specs: Shackle pin Ø (mm)8 mm Weight (g)70.5 g A (mm)38 mm B (mm)17 mm C (mm)29 mm Maximum working load (kg)1380 kg Breaking load (kg)2760 kg 10mm Specs: Shackle pin Ø (mm)10 mm Weight (g)138.5 g A (mm)48 mm B (mm)22 mm C (mm)32 mm Maximum working load (kg)2210 kg Breaking load (kg)4420 kg