Unfinished adamant bolts are Adamant bolts before feathers are added. These bolts are made by using an Adamant bar with an anvil, with a hammer in the inventory. Each bar makes 10 unfinished bolts, gives 62.5 experience and requires a Smithing level of 73.
Feathers may be added at a Fletching level of 61, granting 7 experience per bolt or 70 experience per set of 10 bolts. The resulting bolts may be used as ammunition for an Adamant or a Rune crossbow. Additionally, poison may be added to create Adamant bolts (p), Ruby bolt tips (at a Fletching level of 63) to create Ruby bolts, or Diamond bolt tips (at a Fletching level of 65) to create Diamond bolts.
Ruby bolts may be enchanted at level 49 Magic to create Ruby bolts (e), and Diamond bolts may enchanted at level 57 Magic to create Diamond bolts (e).
These items are commonly made for training the Smithing and Fletching skills due to the high demand for Adamant bolts (including the associated Ruby and Diamond bolts), and the fact that they are stackable and do not weigh anything.
For an exhaustive list of all known sources for this item, see here
- Unlike other unfinished bolts, Adamant bolts(unf) does not have a space before the parentheses.