Cross recessed (+) pan head screw(Thread section100(Coarse Steel Unplated 6X115X100 Pitch 1.0

This is the most widely used, representative type of machine screw. It features a shape with rounded upper edges on the head. The head has sufficient thickness to engage firmly with a screwdriver, allowing for strong tightening.

There is no particular specified application for this screw. It is used in a wide variety of situations; however, since pan head machine screws are only available up to 12mm in size, they are primarily used for fastening small components.
Pan Head Machine Screw Head Dimensions Chart　Pan Head Machine Screw Encyclopedia

• Cross recessed (+) pan head machine screw, Thread length 100, Coarse pitch
• Nominal diameter (d): M6
• Length under head (ℓ): 115.0
• Thread length: 100.0
• Pitch (P): 1.0
• Cross recess number: 3
• Head diameter (dk): Nominal 10.5, Tolerance 0, -0.7
• Head height (k): Nominal 3.9, Tolerance ±0.2
• Cross recess (m): Reference 6.3