How to Find Fallout 4’s Rarest Crafting Components

Fallout 4’s crafting system has opened up all kinds of new options for committed players, but it’s all for naught if you can’t complete your project. That’s why we’ve assembled this comprehensive guide, which includes every single item that yields one or more of the game’s 12 rarest components.

Each slide lists all the items that contain a particular component (starting with acid and ending with silver), so if you’re looking for something specific, you can skip straight to it. And if you’re really desperate, remember: you can always tag objects from within the crafting menu so applicable items will be marked with a magnifying glass icon when you find them in the wasteland. Or you can just bring a companion and load him down with every single piece of junk you find. Your call.

Looking to craft some chems or explosives? You're going to need acid. Try to find the following items:

Abraxo Clear (1), Abraxo Cleaner Industrial Grade (2), Acid (1), Antifreeze Bottle (2), Bag of Fertilizer (1), Bloatfly Gland (2), Bloodbug Proboscis (1), Coolant (2), Cracked Deathclaw Egg (1), Ichor Sac (2), Makeshift Battery (3), Pristine Deathclaw Egg (1), Suprathaw Antifreeze (4), Undamaged Abraxo Cleaner (1)

Adhesive shows up in all kinds of crafting recipes, from gun mods to workshop items. Here are all the items that'll boost your supply:

Adhesive (1), Duct Tape (1), Economy Wonderglue (5), Military-Grade Duct Tape (4), Pack of Duct Tape (4), Sealed Wonderglue (4), Vegetable Starch (5), Wonderglue (2)

Without antiseptic, you won't be able to craft, like, any medical items. At all. Find the following if you want to live a long and healthy life:

Abraxo Clear (2), Abraxo Cleaner Industrial Grade (4), Antiseptic (1), Blood Sac (2), Empty Blood Sac (1), Industrial Solvent (4), Toothpaste (2), Turpentine (2), Undamaged Abraxo Cleaner (2)

You never quite know when you're going to need asbestos, but it shows up in enough random chems and mods that you're probably going to need some eventually. When that time comes, hunt for the following items:

Asbestos (1), Biometric Scanner (1), Chalk (2), Cigarette Carton (2), Coffee Pot (1), Extinguisher (2), Luxobrew Coffee Pot (2), Oven Mitt (1), Pack of Cigarettes (1), Preserved Cigarette Pack (1), Prototype Biometric Scanner (1), Rat Poison (1), Teapot (1), Undamaged Cigarettes (2), Unscorched Oven Mitt (1), Untarnished Coffee Pot (1)

If you're looking to craft some armor or improve your lightweight apparel, you're going to need ballistic fiber. This stuff is hard to come by, so when you see these items, grab them:

Ballistic Fiber (1), Military Ammo Bag (2), Military-Grade Duct Tape (2), Peizonucleic Liner (2)

Building a turret (or anything electronic, really)? Time to find some circuitry. Here are all the items that contain this high-tech resource:

Assaultron Circuit Board (5), Circuitry (1), Distress Pulser (1), Enhanced Targeting Card (2), Flight Data Recorder (1), FLL3 Turbopump Bearings (1), Fusion Pulse Charge (2), Hot Plate (2), Inactive Distress Pulser (1), Institute Recorder (1), Military-Grade Circuit Board (5), Poseidon Radar Transmitter (1), Radar Transmitter (1), Recorder (1), RFID Device (1), Sabotaged Turbopump Bearings (1), Sensor Module (5), Sweeper (2), Telephone (2)

Laser tripwires, high-powered scopes, energy weapon mods--all of these require crystal. Get you some:

Camera (2), Crystal (1), Crystal Liquor Decanter (4), High-Powered Microscope (2), Liquid Decanter (4), Magnifying Glass (2), Microscope (2), ProSnap Camera (4), Reporter’s Camera (2), Undamaged Camera (2)

Laser-based weapons and switches--among other high-tech mods--require a healthy supply of fiber-optics. If you find yourself in need, these items can help you out:

Applicator (1), Biometric Scanner (1), Ear Examiner (1), Fiber-Optics (1), Flight Data Recorder (2), High-Powered Microscope (1), Microscope (1), Pip-Boy (2), Prototype Biometric Scanner (1)

Gold--in addition to being shiny and pretty and stuff--is an incredibly useful substance. Late-game laser guns require lots of gold, but so do plenty of other craftable items along the way. It's an extremely rare component, though, so pick up the following items whenever you find them:

Gilded Grasshopper (5), Gold (1), Gold Bar (10), Gold Plated Flip Lighter (1), Gold Watch (2)

In an atomic world, nuclear material plays a major role. Weapon sights, explosives, workshop items--all of these contain some measure of radioactive juice. When you're in need, track down these items:

Alarm Clock (1), Biometric Scanner (2), Blast Radius Board Game (1), Cauterizer (1), Distress Pulser (1), Fusion Pulse Charge (5), High-Powered Magnet (1), Ichor Sac (1), Inactive Distress Pulser (1), Institute Recorder (1), Mini Nuke Beryllium Cap (1), Mini Nuke Detonator Shell (2), Mini Nuke Hemisphere Core (1), Nuclear Material (1), Pip-Boy (1), Prototype Biometric Scanner (2), Radioactive Gland (2), Radscorpion Stinger (2), Recorder (1), Sensor (1), Sweeper (2), Tri Tool (1), Wakemaster Alarm Clock (2)

Everything from cars to alarm clocks runs on atomic power in the Fallout universe, but good ol' oil still shows up in turrets, gun mods, and even water purifiers. Get some black gold from any of the following items:

Aluminum Canister (1), Aluminum Oil Can (2), Blood Can (2), Blowtorch (1), Blue Paint (2), Cooking Oil (3), Cutting Fluid (3), Flip Lighter (1), Fumigus Blowtorch (3), Gas Canister (1), Gold Plated Flip Lighter (1), Industrial Oil Canister (2), Industrial Size Shortening (5), Lantern (2), Mr. Handy Fuel (2), Oil (1), Oil Can (4), Oil Canister (2), Paint Can (2), Soap (1), Unused Flip Lighter (1), Used Oil Can (1), Yellow Paint (2)

The runner-up of rare metals, silver shows up in plenty of weapon mods, such as sights and scopes. Here's every single item that'll give you some gray:

Annika’s Locket (2), Antique Pocket Watch (2), Antique Silver Locket (2), Enhanced Targeting Card (1), Fancy Hairbrush (2), Locket (2), NX-42 Guidance Chip (1), Silver (1), Silver Bar (10), Silver Bowl (2), Silver Fork (1), Silver Hairbrush (2), Silver Locket (2), Silver Plate (1), Silver Pocket Watch (2), Silver Table Knife (1), Silver Table Spoon (1), Silver Watch (2)