Iron bolts

Iron Bolts is a members-only item on the OSRS Grand Exchange in the bars category.

In-game examine text: "Iron crossbow bolts."

It has a Grand Exchange buy limit of 7,000 every four hours, a high alchemy value of 1 gp, and item ID 9140.

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Iron Bolts shows an active flip setup with a margin of +1 gp and 275,029 trades over the last 24 hours.

At the buy limit of 7,000 every four hours, max profit per cycle is about 7.0k gp — high margin with healthy liquidity.