Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. "D" Dee shackles are the most common type of shackle. They are best suited for aligned attachment points. High-Resistance (HR) shackles are forged in 17-4PH stainless steel to handle high loads. They have an "HR" imprint for easy identification. 6mm Specs: Shackle pin Ø (mm)6 mm Weight (g)25 g A (mm)19 mm B (mm)14 mm Maximum working load (kg)750 kg Breaking load (kg)1500 kg 8mm Specs : Shackle pin Ø (mm)8 mm Weight (g)59 g A (mm)25 mm B (mm)17 mm Maximum working load (kg)1380 kg Breaking load (kg)2760 kg 10mm Specs: Shackle pin Ø (mm)10 mm Weight (g)120 g A (mm)32 mm B (mm)20 mm Maximum working load (kg)2210 kg Breaking load (kg)4420 kg 8mm HR Specs: Shackle pin Ø (mm)8 mm Weight (g)56.7 g A (mm)25 mm B (mm)16 mm Maximum working load (kg)2330 kg Breaking load (kg)4650 kg 10mm HR Specs: Shackle pin Ø (mm)10 mm Weight (g)111 g A (mm)32 mm B (mm)20 mm Maximum working load (kg)3720 kg Breaking load (kg)7450 kg