Grade 100 Eye Self Locking Hook? Quenched and Tempered Alloy Steel.? At least 25% greater WLL than traditional G80 products.? Manufactured in accordance with EN 1677- 3and ASME B30.26, ASME B30.10.? Certified by DGUV GS-OA-15-05 & DGUV GS-MO-15-05? Proof Load tested at 2.5 times the WLL with certificationfor each batch manufactured.? Design Factor 4:1.? Fatigue rated to 20,000 cycles at 1.5 times the WLL.? Tempering temperature minimum 400°C? Magnaflux crack detection is performed 100% on each batch.