The Thunderstrike Gauntlet is a massive Power Fist that is used as a melee weapon by the combat walkers of the Questor Imperialis, the Imperial Knights, and by the Renegade Knights of the Questor Traitoris. A super-charged Power Weapon, the Thunderstrike Gauntlet crackles with a barely contained nimbus of energy that by merely clenching the fist can cause shock-waves to emanate outwards and sparks of incandescent fury and sizzling arcs of energy. When used against a foe in close combat, it releases a deafening thunderclap that can crumple protective armour and completely pulverise its target. When the Thunderstrike Gauntlet is swung by the Knight the sheer forces delivered by the blow can send towering monsters or vehicles flying into nearby infantry or other vehicles, crushing them to dust. Knights armed with a Thunderstrike Gauntlet are capable of defeating monstrous xenos in a single strike, and have been known to smash into the legs of enemy Titans, toppling them into broken ruin.
Due to the sheer diversity of Knight Worlds and Forge Worlds in the Imperium there exist a multitude of minor variants of the Thunderstrike Gauntlet, each different from the last in a number of distinct ways. The known variants include:
- Thunderstrike Gauntlet with Lightning Claws - A rare variant of the Thunderstrike Gauntlet, this version is similar to an Astartes Lightning Claw and features three adamantium blades that protrude from just above the knuckles of the fist, each sheathed in a powerful disruption field. These weapons are capable of causing even more damage to the enemy than the standard pattern.
- Codex: Imperial Knights (7th Edition), pp. 16, 21, 24, 29-30, 115
- Warhammer 40,000: Index - Chaos (8th Edition), pg. 109
- Warhammer 40,000: Freeblade (Video Game)