Hexagonal Head Bolt, M20X65. Threads: As Per Is-4218. Specification: Is-1364, Iso- 4014, Di N-931/933. Mechanical Properties Is-1367. Property Class 8.8 Or 10.9 Or 12.9. Make: Tvs, Lps, Unbrako Or Similar. (Ref : Item No 6 Of Refrence Drawing No 72802003 Of Icf Attached) [ Warranty Period: 30 Months After The Date Of Delivery ] ]