Features:

• Hexagon socket screws or cylinder head screws are ideal for screw connections that are difficult to access from the side due to their design. The Allen key is not inserted from the side at a 90° angle, as is the case with the external hexagon key, for example. It is inserted in an axial direction. They have a cylindrical head and a metric external thread.
  
• - Made from high-quality A2 stainless steel. It has good corrosion and heat resistance, high strength at low temperatures and good mechanical properties and is robust and durable.
  
• - Various screw sizes: M4 x 10mm, M4 x 12mm, M4 x 16mm, M4 x 20mm, M4 x 25mm, M4 x 30mm to meet different needs.It is a very important hand tool for the family.
  
• - With the M4 nuts, the installations are now more precise and the contact surface increases, which reduces pressure and protects the parts and screws.
  
• - They are also anti-oxidising and anti-corrosive at high temperatures. The main use of the carbon steel hexagon socket screw is very common in electronics, electrical appliances, chemicals, water, machinery and equipment, furniture and many other areas.
  
• - The screws and nuts are well packed in 9 compartments and in a transparent plastic box for convenient use and storage. Quick and easy to get the desired size.

Specification:

- Product type: Cap screws
- Material: A2 stainless steel
- Head shape: Cap Head
- Drive: Hexagon socket
- Measuring system: Metric
- Screw size: M4 x 10mm, M4 x 12mm, M4 x 16mm, M4 x 20mm, M4 x 25mm, M4 x 30mm
- Product size = thread diameter x length (without head length)
- Strength: A2
- Nuts: M4
- Quantity: 247 Pcs

Package included:

Thread diameter x length (without head length)
25 Pcs M4 x 10mm (screws)
25 Pcs M4 x 12mm (screws)
25 Pcs M4 x 16mm (screws)
25 Pcs M4 x 20mm (screws)
20 Pcs M4 x 25mm (screws)
15 Pcs M4 x 30mm (screws)
135 Pcs M4 (nuts)
2 Pcs x 3mm (hexagon spanner)
Everything in a practical plastic box