Broad bolts (or Broad-tipped bolts) are bolts used for a crossbow. They are the broad-tipped equivalent of Adamant bolts (+100 Ranged Strength). Players can buy 250 of them by exchanging 35 Slayer reward points or buy up to 5,000 unfinished broad bolts at a time (or buy Unfinished broad bolt packs) directly from any Slayer Master. Broad bolts, or their arrow equivalents, are required by players who intend to slay Turoth or Kurasks using ranged.
They can be player made using the Fletching skill of at least level 55 by adding feathers to unfinished broad bolts after purchasing the ability to fletch them for 300 Slayer reward points. Unfinished broad bolts can be purchased from Slayer Masters with coins. It is generally better to buy broad bolts from the Grand Exchange as they cost only a few GP more than fletching them, and to instead spend Slayer reward points on the ability to craft the Slayer helmet (400 points) or Slayer ring (300 points), as these items are far more useful for the amount of Slayer reward points spent.
Broad bolts are fletched 10 at a time and give 3 Fletching experience per bolt, or 30 experience per set of 10 bolts made.
Broad bolts are only usable by players with a Slayer level of at least 55 and a Ranged level of at least 61. They can be fired only by the Rune crossbow, Dragon hunter crossbow, Dragon crossbow and Armadyl crossbow.
Many players use broad bolts for training and general ranging because they are as strong as adamant bolts, but are significantly cheaper.