100 pcs M4-0.7 x 20mm High-Strength Button Head Torx Screws, Grade 10.9, Black Oxide, for Precision Electronics DIY, Includes Torx Bit (Size T20)

• Thread Size: M4-0.7; Thread Pitch: 0.7mm; Thread Length:20mm; Torx Drive T20 (Included)
• Head Diameter: 7.6mm; Head Height: 2.4mm; Package: 100 - pack
• Material: Grade 10.9 alloy steel (quenched and tempered) screws, ensuring exceptional load-bearing capacity and fatigue resistance; Black oxide coating provides a sleek, non-reflective finish while enhancing corrosion resistance and reducing galling during installation
• Low-Profile button head ensures a sleek, flush finish that eliminates protrusion in confined areas; The wide bearing surface distributes clamping force evenly, preventing surface damage to delicate materials; Ideal for securing components in drones, 3D printer frames, or CNC enclosures, this design optimizes airflow and avoids interference with adjacent wiring or moving parts
• Anti-Slip Torx Drive Performance: The T20-compatible Torx head minimizes cam-out risks, enabling precise torque control during installation. This ensures secure fastening without damaging sensitive materials, critical for circuit boards, robotics, automotive, delicate electronics and optical equipment

Premium Construction & Durability Crafted from high-grade alloy steel with a robust black oxide finish, these screws deliver exceptional corrosion resistance and longevity. Grade 10.9 certification ensures superior tensile strength (up to 1040 MPa) and shear resistance, ideal for high-stress applications.