I'm not familiar with how the crank bolt is constructed so maybe reusing it is OK but the "quarter turn more" part tells me it's not a good idea. I don't reuse "non-reusable" fasteners and will replace any fastener in a heartbeat if it looks/feels the least bit wonky. Especially on the drive train, suspension, or brakes. Fasteners are too cheap to take chances. And use the proper grade - higher grade fasteners are not necessarily better for the application.
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