Examples from literature

• He broke one of the windows, and inserting his hand undid the fastening and climbed in at the window. 
• He heard a smash and the destructive clang of the iron fastenings of the shutters. 
• I was tugging at the fastening of the window when I became aware of Bates at my elbow. 
• The gate was not fast, and had no good fastening: only a double wooden bar, a poor chain, and a bad lock. 
• Then he crouched down and fumbled with the leather fastenings.