Pontiac 350-400-455 balancer bolt kit
- 5/8"-18 Thread
- 1.580" UHL
- 5/8" Socket
To ensure the damper is locked into place, use these ultra-strong 200,000 psi bolts that exert maximum clamping force. Special features include 1/4" thick washers with an extra wide surface and tall 12-point heads that accept a deep socket to end the worry of stripping the head.