Cross recessed (+) pan head screw(Thread section50(Coarse Stainless steel Unplated 3X135X50 Pitch 0.5

This is the most widely used, representative type of machine screw. It features a shape with rounded upper edges. The head has sufficient thickness to engage firmly with a screwdriver, allowing for strong tightening. There is no particular designated application. While used in a wide variety of settings, the machine screw itself is only available in sizes up to 12mm, making it suitable for fastening small components.
Pan Head Machine Screw Head Dimension Chart　Pan Head Machine Screw Encyclopedia

Hot-dip galvanized coating has a large film thickness, which may result in incompatibility with other surface treatments.
Additionally, even among hot-dip galvanized products, incompatibility may occur when purchased from different suppliers.
Please note that returns may not be accepted in the cases described above, so kindly confirm this before proceeding with your purchase.

• Cross recessed (+) pan head machine screw, thread length 50, coarse pitch
• Nominal diameter (d): M3
• Length under head (ℓ): 135.0
• Thread length: 50.0
• Coarse pitch: 0.50
• Cross recess number: 2
• Head diameter (dk): Nominal 5.5, Tolerance 0,-0.5
• Head height (k): Nominal 2.0, Tolerance ±0.15
• Cross recess (m): Reference 3.6