Prima Games eGuides Fallout 4 eGuide

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Fallout 4 eGuide INV Junk

Base Components

Component Rarity Description
Acid Rare Acid is primarily used to craft chems, explosives, and cutting fluid at chemistry stations.
Adhesive Special This essential component is used in a wide variety of mods, explosives, and workshop items. Even with the Scrapper perk, this component can never be salvaged from weapons or armor. However, maintaining a good supply of adhesive makes it much easier to upgrade your gear and expand your settlements.
Aluminum Uncommon Aluminum is used in nearly every type of crafting, but it’s an essential component of most complicated devices. If you plan on crafting ballistic weapon mods, Power Armor mods, explosives, turrets, and generators, you’ll need to grab all the aluminum you can find.
Antiseptic Rare Antiseptic is most often used to craft medicinal mods and chems.
Asbestos Rare Asbestos is most often used to boost an item’s Energy Resistance, but it’s needed for a variety of mods and chems.
Ballistic Fiber Rare Ballistic fiber is an essential component of many armor mods—especially the ballistic weave mods used to reinforce many lightweight apparel items.
Bone Common Bone is needed to craft specialty items like Raider armor mods and cutting fluid.
Ceramic Common Ceramic is used to craft some mods and workshop items, but it’s an important part of most power-related items. You’ll need ceramic to build radio recruitment beacons, smaller generators, and nearly all switches.
Circuitry Rare Circuitry is used in most high-tech devices. Many advanced mods, turrets, and electronic devices require some amount of circuitry. You’ll even find this component listed in recipes for some explosives and chems.
Cloth Common Cloth is required for various mods and workshop items, but it’s particularly important for armor modification and furniture production.
Concrete Common Concrete is primarily used to build shack foundations and water pumps.
Copper Uncommon Copper is an important part of most electronic devices. Generators, switches, lights, and advanced mods all tend to use some amount of copper. But this component also has a variety of low-tech applications.
Cork Uncommon Cork is primarily used for weight-reducing armor mods.
Crystal Rare Crystal is an important part of most laser-based devices. Laser tripwires, heavy laser turrets, and many laser gun mods require a good supply of crystal. It’s also needed for advanced scopes and other high-tech items.
Fertilizer Uncommon Fertilizer is primarily used to craft chems and explosives at chemistry stations.
Fiber-Optics Rare Fiber-optics are required to craft a variety of high-tech mods and devices. These components are particularly important to laser-based weapons and switches, but fiber-optics are used in the creation and modification of several items.
Fiberglass Uncommon Both lightweight and durable, fiberglass is used in a variety of weapon, armor, and Power Armor mods. Energy weapon mods, in particular, tend to require a good amount of fiberglass. This versatile component is also required to craft a small selection of explosives and workshop items.
Gear Uncommon Gears are required for a variety of applications. From simple ceiling fans to massive generators, nearly any device that involves moving parts includes some amount of gears. These low-tech components are particularly important in turret production and gun modification, so restock your supply as often as possible.
Glass Uncommon Glass is used in several recipes, but it’s particularly important when crafting lights, scopes, syringes, and laser-based weapon mods.
Gold Rare Gold is needed for a variety of high-tech mods and devices. It’s particularly important for laser weapon enthusiasts, but any craftsman would do well to keep a supply of gold on hand.
Lead Uncommon Most lead applications involve boosting the Radiation Resistance offered by a piece of apparel, but any item meant to reflect or contain radiation is likely to require some amount of lead.
Leather Common Leather has a few different uses, but it’s most often used to craft mods at armor workbenches.
Nuclear Material Rare Nuclear material is required to craft a variety of mods, explosives, and workshop items. Most of the devices that use nuclear materials are fairly advanced, but this rare component is also needed to craft simple weapon sights.
Oil Special Oil is essential to most mechanical devices like gun mods, turrets, and water purifiers, but it’s also used in a variety of armor mods and explosives.
Plastic Common Plastic is involved in almost every type of crafting, but it’s most commonly needed for building furniture or modifying armor and energy weapons.
Rubber Common The unique properties of rubber make it an essential part of many items. It serves as insulation for mechanical devices like generators and pylons, it adds flexibility to weapons and armor, and it’s an important component of various furniture pieces and decorative items.
Screw Uncommon Whether you’re constructing mechanical devices or reinforcing armor, you’ll find a lot of uses for this component. Screws aren’t as rare as some materials, but if you plan on modifying your gear, building turrets, or taking advantage of the workshop’s most effective machines, you’ll want to salvage as many screws as possible.
Silver Rare Silver is primarily used for modifying weapons. It’s required for a wide variety of energy weapon mods, but it’s also a featured component of most sights and scopes.
Spring Uncommon Springs are used in a variety of gear mods and mechanical devices. Whether you’re building a simple pressure plate, extending the ammo capacity of your favorite gun, or customizing a suit of Power Armor, you’ll find plenty of projects that require springs.
Steel Common Steel is one of the most essential building materials you’ll find—luckily, it’s also one of the most common. In addition to basic construction, steel is needed for a large variety of mods.
Wood Common Wood is most often used in basic construction. Structures, furniture, and decorative items all tend to require large amounts of wood. Most settlements contain enough trees to get you started, but wood-based junk items can help you better meet the needs of your settlers.