Snap hook having pivotal lock

A snap hook comprising:

• a hook member including a space formed therein, and including a gap formed therein and communicating with said space of said hook member for forming an attaching end and a receiving end, said hook member including a channel and an orifice formed in said attaching end thereof and communicative with each other, said orifice of said hook member including an inner diameter greater than a height of said channel of said hook member and located farther away from said receiving end of said hook member than said channel of said hook member, and said hook member including a latching cavity formed in said receiving end thereof,
• a pivotal gate including a first end pivotally secured to said attaching end of said hook member with an axle for allowing said pivotal gate to be rotated relative to said hook member between a locking position and an unlocking position, said pivotal gate including a second end, and said axle being rotatably engaged through said orifice of said hook member, and
• a latch member attached to said second end of said pivotal gate for selectively engaging with said latching cavity of said hook member, and
• said axle including at least one flat surface formed therein for allowing said axle to be selectively engaged into said channel of said hook member and to be moved toward or away from said receiving end of said hook member when said at least one flat surface of said axle is parallel to said channel of said hook member, and said latch member being moveable to selectively engage with said latching cavity of said hook member and to anchor said pivotal gate to said hook member at said locking position when said axle is moved toward said receiving end of said hook member.