Screws are necessary for many weapon mods in Fallout 4. View this guide if you need to stock up on them.
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Fallout 4: Where to get oil

Oil is essential for crafting certain items in Fallout 4. This guide will show you where to find some.
Without copper, your settlements cannot run properly. Lights will not work. Turrets will not function. Advanced crafting becomes limited.
Feature Somebody built an AT-AT Walker in Fallout 4, and that's quite a long way from the best settlement we've seen ...
The floating city of Columbia has been recreated in Fallout 4. GS News Updates are here to keep you up to date with the very latest and greatest in gaming news.