Auveco 16828 Hex Head SEMS Tap Screw M6.3-1.81 x 20mm

The Auveco 16828 is a metric hex head SEMS tap screw designed for automotive and industrial fastening applications. This self-tapping screw features an M6.3-1.81 thread size with a 20mm length, combining a hex head for easy installation with an integrated washer (SEMS) for enhanced load distribution and prevention of loosening.

Key Features:

• Hex head design allows for high torque application and secure fastening
• SEMS (pre-assembled washer) provides larger bearing surface and prevents washer loss
• Self-tapping thread eliminates need for pre-drilled threads
• M6.3-1.81 metric thread pitch for precise OE applications
• 20mm length suitable for medium-duty fastening requirements
• Manufactured to OE specifications for reliable fit and function

This fastener is commonly used in automotive body panels, trim assemblies, and engine compartment components where a secure, vibration-resistant connection with integrated washer is required. The hex head configuration allows for efficient installation using standard socket tools.