Grenades do, I'm not sure about the weapons that have an Unarmed attack-form, though (rocks, plant spikes)
Edit: But I'm 99% sure they do, because with Bonus HtH Attacks, it makes rock be 1 AP punch, but throwing a rock is still 4 AP. This means that the attack styles are separated, which means that taking Bonus Ranged Damage will work for rocks, plant spikes, throwing spears.