Patent attributes
An electrical connection box includes a body, a mounting member attached to the body, a lock arm which is provided at one of the body and the mounting member, and a lock receiving portion which is provided at the other of the body and the mounting member. The lock arm includes an arm portion and a first engaging portion. The lock receiving portion includes a receiving portion which has an inserting portion and a second engaging portion. The receiving portion includes a projection which projects from the surface of the receiving portion farther than the second engaging portion from the inserting portion so as to abut on the arm portion to locate the lock arm in a predetermined position. When the first engaging portion engages with the second engaging portion, a clearance is formed between the receiving portion and the arm portion.