Package include:280pcs M3 flat head phillips screws and 200 pcs black M3 nuts,total 480pcs in a handy box.
Content:
M3 x 4mm 40Pcs
M3 x 6mm 40Pcs
M3 x 8mm 40Pcs
M3 x 10mm 40Pcs
M3 x 12mm 40Pcs
M3 x 16mm 40Pcs
M3 x 20mm 40Pcs
M3 nuts 200Pcs

Specification:
Product Name: M3 Machine Screws
Material: Carbon steel
Thread Type :Machine screws
Measurement system:Metric
Screw Type: Phillips
Color: black
Model: M4
Length: 4mm / 6mm / 8mm / 10mm / 12mm / 16mm/ 20mm

These black flat head screws have standard dimensions,plain and clean surface We have 7 sizes for you, you can choose the sizes you need, enough for you to use at home or work
Made of high quality Carbon steel,black screws,with high hardness,anti-corrosion and good stability

Wide applications: these machine screw cross countersunk head machine screw are good choice for electricians,Suitable for household, office equipment industry, the electronics industry, the communications industry, machinery, etc.
Note: Small parts, keep away from children under 6 years old.