Forged super alloy steel. Suitable for G80 Rigging Hardware. Individually proof test at 2.5 times Working Load Limit. Fatigue tested at 1.5 times Working Load Limit for 20000 cycles. 100% magnaflux crack detection. Ultimate Load is 4times the Working Load Limit. Brand:DAWSON/OEM Code:DS-H1027 Size:1-10T