This screw on wall clamp was designed to hold an Infinity X1 flashlight  or any flashlight with a body diameter of roughly 40mm. 

Included are two models: 

• Countersink screw
• Button head screws

To attach to your wall print the version you like and screw er' on and done. 

Note: I have found it is easiest to remove the flashlight if you mount it inverted.