Description: This M3 hex socket flat head screws set is made of stainless steel material, good corrosion resistance and rust resistance, durable to use. Widely applied to home furniture, office machines. Features: Made of stainless steel material, durable to use. Equipped with a plastic box, you can classify screws in an organized manner, more convenient to carry and take out. Use this fastener with the hex wrench, hold the mechanical parts firmly in place. Different length M3 screws can be used for different purpose. Used widely in the home and office appliance, furniture and other machinery industry. Specification: Model: Flat Head Screw Material: Stainless steel Thread size: M3 Application: Electronics industry fasteners Weight: 218g(120pcs), 311g(180pcs) Type: 120pcs/set, 180pcs/set (Optional) Content: 120pcs/set: M3*16mm 20pcs M3*20mm 20pcs M3*25mm 20pcs M3*30mm 20pcs M3*35mm 20pcs M3*40mm 20pcs M3 nut 120pcs 180Pcs/set: M3*16mm 30 pcs M3*20mm 30 pcs M3*25mm 30 pcs M3*30mm 30 pcs M3*35mm 30 pcs M3*40mm 30 pcs M3 nut 180pcs Package Included: 1 set x M3 flat head screws with nuts 1、Made of stainless steel material, durable to use 2、Equipped with a plastic box, you can classify screws in an organized manner, more convenient to carry and take out 3、Use this fastener with the hex wrench, hold the mechanical parts firmly in place 4、Different length M3 screws can be used for different purpose 5、Used widely in the home and office appliance, furniture and other machinery industry