320 PCS M3 M4 Black Round Head Self Tapping Screws

• 【Strong and Durable】: The black screws are made of high-quality carbon steel, whose surface is black zinc plated. Therefore, the hardness is high, which can be used for a long time.
• 【Quantity】: M3x8 (40 pcs), M3x12 (40 pcs), M3x16 (40 pcs), M3x20 (40 pcs), M4x10 (40 pcs), M4x16 (40 pcs), M4x20 (40 pcs), M4x25 (40 pcs), 320 pieces in total.
• 【Sharp Threads】: The screw threads are very sharp and are not easy to deform and slip during installation. It has good fixing performance after installation.
• 【Easy Installation】: The self tapping screws adopts a design of cross-round head, which can be directly locked on the wooden board, which has high strength and is not easy to break.
• 【Wide Range of Uses】: The clamping force of the screw is good. Therefore it can be used for computer, electrical appliances, furniture, cabinets, toys maintenance and installation.

There are 320 pieces of round head screws in the set, which are sturdy and durable. It can fix items firmly and tightly. And it is easy for users to install. Therefore, it is an ideal accessory for furniture making and maintenance in your life.