7/8" (22.2 Mm) Dia Bull Lock Bolt Pin (Round Head) & Collar Zinc Plated (Stand Ard), 2820, Grip Range 1.250" - 1.500" (31 - 38 Mm) Confirming To Spec Is/Rdso-Wd/0001:2022 O F June 2022. [ Warranty Period: 30 Months After The Date Of Delivery ] ]