Working Load Limit (WLL): 9,000 lbs (4.50 Tons). Design Safety Factor: 4:1 minimum ultimate load. Material Construction: Forged alloy steel quenched and tempered. Compatible Chain: Optimized for Grade 70 transport chain. Dimensions: 1.69" throat opening width, 0.63" pin diameter, and roughly 2.75 lbs. total weight. Attachment Method: Clevis style with a quenched and tempered alloy load pin and cotter included.