Abstract: A toggle fastener comprises first and second parts in which the first is a keeper having a cavity. The second part has a bolt slidable therein having a nose adapted to be received in said cavity, and also having hinged thereto a lever on which is pivoted a hasp. The nose of the bolt is adapted to protrude through an opening in the keeper. A cam surface on the nose of the bolt is inclined to the axis of the bolt, and a cam surface on the keeper adjacent to said opening and is opposed to and is inclined oppositely to the cam surface on the nose of the bolt. Said hasp is engageable with both of said cam surfaces in order to cam the keeper and the bolt in opposite directions to prevent rattling.