Set screw M3x5 mm, 45H DIN 916

The M3x5 mm, 45H DIN 916 set screw represents a reliable solution for firmly securing hubs, pulleys, or collars on shafts. Thanks to its hexagon socket and cup point design, it digs securely into the base material when tightened, thereby effectively preventing unwanted slippage or rotation of your machine components.

This fastener is supplied without surface treatment (plain finish) and achieves strength class 45H. This guarantees optimal hardness for reliable clamping in precision mechanics as well as in common engineering applications where permanent joint stability is required without compromises.

Technical Advantages and Details

• M3 metric thread with a length of 5 mm: Compact and precise dimensions suitable for space-limited installations.
• DIN 916 (ISO 4029) standard: The cup point shape ensures an excellent gripping surface and prevents loosening.
• 1.5 mm hex key size: Allows smooth and secure power transmission when tightening with a standard Allen key.

During installation, ensure the correct tightening torque is used so that the M3x5 mm, 45H DIN 916 set screw does not unnecessarily damage the shaft surface. If the assembly faces severe shocks or vibrations in the long term, we recommend additionally securing the joint with a suitable thread-locking adhesive.