ARP 670-1004 is a five-piece set of 12-point head bolts machined from ARP 8740 chromoly steel with a black oxide finish. The bolts have an M6 x 1.00 thread and a 35mm under-head length. The 12-point head accepts higher installation torque and fits tight-clearance areas where a standard hex head will not.
| Type | 12-Point Bolts |
| Material | ARP 8740 Chromoly |
| Finish | Black Oxide |
| Size | M6 x 1.00 x 35mm |
| Quantity | 5 (package) |
| Part Number | 670-1004 |
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