Hex Socket Cap Screw 300pcs M3 x 4-20mm 12.9 Grade Black Alloy Steel Bolt and Nut Kit
- Overall oxidization treatment, anti-rust and corrosion resistant.
- Made of 12.9 grade high strength alloy steel, sturdy and durable.
- Complete specification, ideal for automotive maintenance, machine repair, household use.
- Provide different length of M3 screws to meet your needs.
- Come with a plastic box for easy storage and carry.
