Features: all components are alloy steel, quenched and tempered rated at 100% at 90 angle individually proof-tested to 2-1/2 times the working load limit with certification and statistically magnetic particle inspected fatigue rated at 1-1/2 times the working load limit at 20,000 cycles marked with a product identification code (pic) for traceability, top washer is marked with working load limit and recommended torque value 360 swivel and 180 pivot action satisfies asme b30.26 requirements