Hex Nut M24 Prevailing Torque,Din 6925/Din 980V, Is:1367-2002,Pt-8, 10, A3B, Gr Ade & Make Should Be Clearly Embossed At Suitable Location Of Material (On Head Of Bolts & On Periph Eral Face Of Nuts) For Easy Traceability & Verification. [ Warranty Period: 30 Months After The Date Of Delivery ] ]