Overview Reviews Product Description Alloy steel - quenched and tempered Meet or exceed ASTM A-952-96 standard Meet EN1677 standard (20,000 cycle fatigue test) Permanently embossed with VGD, size, model number and trace code Approved for overhead lifting when all components are grade 80 Fast and easy assembly without the need for special tools Designed for attaching hooks, master links/sub-assemblies and other end fittings to grade 80 alloy chain Proof tested to 2.5 times the working load limit (WLL) Design factor 4:1 Vanguard Catalog Product Videos Custom Field Diameter 3/4" Working load limit 28300lbs Product Reviews Write a Review Write a Review × Vanguard 3/4" Grade 80 V-Line Hammer Lock Coupling Link 3956 00481 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *