Features: 1. Carbon steel material provides high strength and good durability, available in harsh environment. 2. The threads can easily go through various material like plastic, wood, soft metal and more. 3. High in hardness, not easy to deform. 4. There are 450 pieces of screws in 9 size to meet your different needs, suitable for long term use. 5. All screws are sorted by their size and packed in a plastic storage case, convenient to carry and use. Specification: Condition: 100% brand new Material: Carbon Steel Screw Type: Cross Head Shape: Pan head Weight: Approx. 251g/8.8oz Size & Quantity: --M3*5 50pcs --M3*6 50pcs --M3*7 50pcs --M3*8 50pcs --M3*10 50pcs --M3*12 50pcs --M3*14 50pcs --M3*16 50pcs --M3*18 50pcs Package List: 450 * Self Tapping Screws with Box --M3*5 50pcs Package List 1Carbon steel material provides high strength and good durability, available in harsh environment. 2The threads can easily go through various material like plastic, wood, soft metal and more. 3High in hardness, not easy to deform. 4There are 450 pieces of screws in 9 size to meet your different needs, suitable for long term use. 5All screws are sorted by their size and packed in a plastic storage case, convenient to carry and use.