Class: NUT and BOLT CHECK PRICE: $150 (half day) DEPOSIT REQUIRED: $75 Info:  Once you have purchased your new Nervo-Coggins QM, bring it in for a Nut &Bolt Check. We will go over the car bolt by bolt and will scale it. We will also be able to install any new Nervo-Coggin upgrades to the students current QM. The factory highly recommends professional installation, and we are your Nervo-Coggins Headquarters.