Sirius 10.9 Grade Socket Countersunk Screws

The Sirius 10.9 Grade Socket Countersunk Screws are precision-engineered high-strength fasteners designed for applications where a flush, secure finish and exceptional holding power are essential. Manufactured from Grade 10.9 high tensile steel to DIN 7991 and ISO 10642 specifications, these screws are ideal for engineering, machinery, automotive and industrial assemblies.

Featuring a 90° countersunk head, they sit flush with the surface once installed — perfect where protruding fasteners are undesirable. The hex socket drive enables high torque tightening whilst reducing the risk of cam-out, allowing fast, secure installation with standard hex keys or hex bit sockets.

Available in sizes from M3 to M20 and lengths from 6mm to 120mm, suitable for a wide range of fastening applications.

Features and Benefits:
• Manufactured from high-strength Grade 10.9 steel
• Precision engineered to DIN 7991 and ISO 10642

Specifications:
• 90° countersunk head provides a flush, professional finish
• Hex socket drive allows high torque installation with reduced cam-out risk
• Excellent tensile strength for demanding, high-load applications
• Precision threads ensure secure and reliable fastening
• Compatible with standard hex keys and hex bit sockets
• Ideal for engineering, automotive and industrial applications