For proper use, we recommend downloading the Original format.The viewer version is intended only for use in the web viewer. In the Original format, the following are fully preserved:✔ full scene structure✔ all materials without simplification✔ proper texture maps✔ original object namesIf you are going to integrate the model into a project, select the Original format.brass Grease fittings are permanently installed by either a taper thread or straight push fit hammer in arrangement leaving a nipple connection that a grease gun attaches to.