Fastener for bag

A fastener mounted on a bag, comprising:

• an engaging piece fixed on a lid portion of the bag and a latch mechanism comprising a metallic surface and a latch member, wherein the latch mechanism comprises a single latch fixed on an outer surface side of a main body of the bag and which is oriented so as to be substantially parallel to said outer surface of said main body portion of the bag and which is configured to detachably admit therein the engaging piece,
• wherein the engaging piece comprises a single engaging ring configured for admitting the latch member and for engaging the metallic surface wherein said engaging piece is clad with a synthetic resin member configured for preventing infliction of injury to the metallic surface, and
• a one piece holding member having a portion thereof extending therefrom, said engaging ring being mounted on said extended portion of said holding member so as to be spaced from an edge portion of the lid and said holding member being oriented substantially parallel to the lid portion of the bag, said engaging ring projecting substantially perpendicularly from said holding member wherein said holding member is connected exclusively to the lid portion of the bag in proximity with said latch mechanism, said engaging ring being directed towards an interior portion of the bag.