M3 Computer screws. 

Used for: 

• securing optical disk drives,. 
• 2.5 inch hard disk drives (HDDs), 
• solid-state drives (SSDs), 
• 3.5 inch floppy drives. 

Head: 6mm  flanged hex / philips head  or philips pan head

Tread: M3

Thread diameter: 0.12 inches (3 millimetres)

Pitch: 0.02 inches (0.5 millimetres)

Thread length:

• Standard M3 3x5 screw: 5mm
• 3x7 M3 screw: 7mm

Total length:

• Standard M3 3x5 screw: 7mm
• 3x7 M3 screw: 9mm
• 
  

• Standard M3 3x5 screw: Metal blue-ish
  
• 3x7 M3 screw: Silver
  

These screws accept a #2 Phillips screwdriver tip

Sold in bags of 1000Pcs