OptiTorque Harmonic Balancer Bolt - GM Duramax H777C06L Sold as a pair

Sold as a pair

to heat-treating the finished product

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OptiTorque Harmonic Balancer Bolt - GM Duramax H777C06L Sold as a pairProduct Description: Harmonic Balancer Bolt 18 mm x 1. 50 Thread 2. 75 in Long 36 mm 12 point Head Steel Black Oxide GM Duramax Sold Individually OptiTorque produces premium quality fasteners for a wide range of automotive applications. From stock rebuilds to hard core racing builds, OptiTorque fasteners are USA made and designed, featuring premium materials and designed to meet or exceed OEM specs.