A spring bolt is a spring bolt. It doesn't matter if it's installed right to left or left to right. Put it in so the zerks are where you want them. And Awaywego is right, 45 degree (and in some cases 90 degree) zerk fittings are your friends. I replace many of the straight zerk fittings during the first chassis grease job of a new vehicle. Servicing would become much easier if every engineer who does vehicle design was made to try servicing it.
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