Most often a club or his lion cloak.
There is no Hurcules. If you mean Heracles his main symbols are a lion's skin cloak, his club, the "Pillers of Hercules" - or any of his Labors.
strength
the love knot or marriage knot
the love knot or marriage knot
Heracles is often depicted with a club in Greek mythology to symbolize his strength and power. The club was a weapon he used in his many feats and battles against monsters and enemies during his heroic quests.
As of June 2014, Jason Davidson plays for Heracles Almelo, a club in Netherlands.
Hercules had a giant club, but also had a bow and arrow.
What is the stock symbol for "THE CALIFORNIA CLUB"?
He is usually depicted carrying a big club and wearing the skin of the Nemean lion.
Heracles' (Herakles) attributes are the lion skin (the one he killed in his first labor) and the club. Some also say that arrows (that were dipped in poison during another labor) is also an attribute.
The club is a symbol for Hercules because he used it as a weapon. He used the club to stun the Nemean lion before strangling it.