High-quality hex socket head bolts for precise applications

These hex socket head bolts with cylinder head are manufactured according to the DIN 912 standard and have a strength class of 8.8. They are electrolytically galvanized, providing increased resistance to corrosion. With a diameter of M3 and a length of 40 mm, they are suitable for various applications in the automotive sector and other precision assemblies.

Technical specifications

• Diameter: M3
• Length: 40 mm
• Strength class: 8.8
• Drive type: Hex socket (Allen)
• Head shape: Cylinder head
• Material: Steel
• Surface treatment: Electrolytically galvanized
• Thread direction: Right
• Thread type: Metric thread

Advantages of electrolytically galvanized hex socket head bolts

• Corrosion resistance: The electrolytic zinc layer offers effective protection against rust formation, extending the lifespan of the bolts.
• High strength: With a strength class of 8.8, these bolts are suitable for applications where high tensile strength is required.
• Precise tightening: The hex socket (Allen) drive ensures a firm grip and allows the bolts to be tightened accurately, which is essential in precision assemblies.

Application areas

These M3x40 hex socket head bolts are ideal for:

• Automotive applications: Suitable for mounting components where precision and reliability are required.
• Machine building: Applicable in machines and devices where strong and corrosion-resistant fastenings are needed.
• Electronics: Perfect for fastening parts in electronic devices where space is limited and a tight fit is required.

Installation instructions

For optimal installation:

• Use a 2.5 mm Allen key to tighten the bolts.
• Ensure that the thread and mounting surface are clean and free of debris to guarantee a solid connection.
• Tighten the bolts to the recommended torque to prevent damage to the thread.

Packaging and availability

These hex socket head bolts are supplied in sets of 20 pieces, making them convenient for both small and medium-sized projects. They are available for immediate delivery, so you can quickly get started with your assembly work.