System of Measurement: Metric; Thread Size: 6mm; Thread Pitch: 1.0mm; Thread Length: 20mm (measured from under the head) Design Advantages: The screw deliver exceptional fatigue resistance for cyclic high-stress loads like industrial machinery, presses; The Allen drive design enables secure high-torque tightening in tight spaces, while full-thread engagement ensures even load distribution Certified Quality and Package: DIN 912; 30 Pieces; Allen Hex Drive Size: 5mm Head Diameter: 10mm; Head Height: 6mm Versatile Industrial Applications: Grade 12.9 alloy steel hex screws are designed to withstand extreme static loads in CNC machines, hydraulic systems, and heavy machinery; They are suitable for dry-environments such as industrial 3D printers, steel fabrication and precision metal projects; However they are not recommended for high-vibration scenarios or untreated humid/corrosive environments Glvaner M6-1.0mm x 20mm Thread Length Socket Head Cap Screws 30 Pcs Grade 12.9 Alloy Steel Black Oxide Exterior Finish 18-8 Full Thread Coverage