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 3 lvls of Iron Fists (+15 dmg bonus) by lvl 7, which is nice and powerful early on, with powerfists you can do 41 dmg. Or you can wait for the lvl 12 Pyromaniac perk and use a 60 dmg Shishkebab saving yourself 2 perk slots.