Railway spike (Fallout 4)

The railway spike is a type of ammunition

Gameplay
They are solid iron spikes or nails previously used to secure railroad tracks to the ground. These spikes can be recovered from slain enemies and are capable of pinning limbs to walls.

Weapons using this ammunition

 * Railway rifle
 * Prototype railway rifle

Locations

 * One batch of 4 spikes can be found in the bunker at Big John's Salvage, where a railway rifle is found.
 * Two batches of 4 spikes can be found in a blue railway car near Bedford Station which also houses a railway rifle. They are present even before the railway rifle spawns at level 20.
 * Daisy sells a few at Daisy's Discounts in Goodneighbor.
 * A small number are sold by Arturo Rodriguez at Commonwealth Weaponry.
 * About a dozen can be purchased from Myrna or Percy at Diamond City Surplus.
 * Over a hundred spikes can be purchased from Proctor Teagan aboard the Prydwen.
 * Spikes used by the player character may be looted from dead enemies provided they didn't remove a limb.
 * Spikes are automatically added to the inventory if the player is shot at by an enemy using them as ammo.
 * Can be found by the eyebot pod in the Commonwealth.
 * It is incorrectly labeled as "Railroad spike" in eyebot pod's terminal options.
 * A few dozen can be routinely bought from Tinker Tom in the Railroad HQ.
 * Additionally, an unnamed railroad agent may fire a shot from a railway rifle after a conversation with Tom. This agent will have a large number of railway spikes in his inventory.