ARP Custom Age 625+ Head Stud Kit for Chevrolet LS3. 190 ksi UTS, cryo-treated, with 12-point nuts + hardened washers. Used in general machinery assembly, structural steelwork and pressure-boundary flanged joints per DIN, ISO and ASME B18 dimensional standards.
| Material | ARP 2000 / CA625+ |
| Standard | ARP |
| Thread | M11 + M8 |
| Approval | ARP |
| Standards | ASTM A193, ASTM A194, ASTM A193 B7, ASTM A194 2H |
| HS code | 7318.15 |
| Material | ARP 2000 / CA625+ |
| Primary standard | ARP |
| Thread standard | M11 + M8 |
| MOQ | 1 |
ARP heat-treated fasteners have stretch-to-yield instruction sheet. Follow ARP lubricant + torque angle protocol for correct preload.