Iron Fist

Iron Fist is a Fallout 3 Perk.
 * Requirements: Level 4, Strength 4
 * Ranks: 3
 * Benefit: With the Iron Fist perk, you do an additional 5 points of Unarmed damage per rank.


 * This perk takes effect even if you're using Unarmed weapons (like the Deathclaw gauntlet, etc...).

Opinions
You can max Iron Fists +15 bonus by lvl 7, which is nice and powerful early on, with powerfists you can end up doing 40 some melee dmg. Or you can wait for the pyromaniac perk in later levels and use a 60dmg Shishkebab and save yourself 2 perk slots.