How big an Allen wrench does it take to replace the glass door hanger in the bathroom?

Bathroom glass door handle screw indoor door lock handle Allen key M6*20mm Allen key top firmly fixed.

The open-ended wrench used for the outer hexagon corresponds to the hexagon nut more accurately because there are hexagon bolts and small hexagon bolts. Commonly used open-ended wrenches are 7, 8, 10, 14, 17, 19, 22, 24, 27, 30, 32, 36, 4 1, 46, 55. The corresponding thread specifications are M4, M5, M6, M8, M 10, M 12, M 14, M 16, M 18, M20, M22, M24, M27, M22.

The minimum size of a complete set of Allen wrenches is 3, and the corresponding relationships are S3=M4, S4=M5, S5=M6, S6=M8, S8=M 10, S 10=M 12, s12 = m/kloc-.

Calculation method of thread bottom hole diameter before tapping: for brittle materials, according to the basic size-1.0826 pitch; For plastic materials, according to the basic thread size-pitch +0. 1.

Brittle materials are in pure cutting state when tapping, and the size of bottom hole is the diameter of thread bottom circle; When tapping plastic materials, plastic deformation will occur after the material is stressed, and the material will move in the direction of thread diameter, so the bottom hole should be enlarged appropriately.

For threaded holes below M6, regardless of material properties, the basic size-pitch is uniform.