Our DIN 7991 Hexagon Socket Countersunk Head Cap Screws are engineered for efficient and reliable integration into automotive assembly processes: Key Advantages for Your Automotive Applications: Aesthetically Pleasing Finish: Creates a smooth, uninterrupted surface, enhancing the visual appeal of interior and exterior components. Strong and Reliable Fastening: The hexagon socket drive allows for high torque application, ensuring secure and durable connections. Space Optimization: Flush mounting is ideal for tight spaces and prevents interference with adjacent parts. Enhanced Safety: Prevents protrusions that could cause injury or snagging. Versatile Applications: Suitable for a wide range of materials and assembly requirements within the automotive sector. Ideal for: Interior Trim and Paneling: Securing dashboard components, door panels, consoles, and other interior elements where a flush finish is crucial for aesthetics and passenger safety. Exterior Body Panels and Aerodynamic Components: Fastening spoilers, diffusers, and other exterior parts where a smooth surface reduces drag and enhances visual appeal. Lighting Assemblies: Securing headlights, taillights, and interior lighting units with a clean and integrated look. Sensor and Electronic Component Mounting: Providing secure and flush mounting for sensors, control units, and other electronic devices. Seating Systems: Attaching upholstery, trim, and structural elements within seats for a clean and comfortable finish. Fluid System Connections: Securing covers and access panels on fluid reservoirs and housings. Precision Mechanical Assemblies: Fastening components in actuators, pumps, and other precision mechanical systems within the vehicle. Product NameStandardMaterial & FinishDiameterLengthHexagon Socket Countersunk Head Cap BoltGB/T 70.3-2023Alloy Steel, Dacromet CoatedM5-M1210-100 mmHexagon Socket Countersunk Head Cap BoltISO 10642:2019Stainless Steel A2-70/A4-80M3-M166-120 mmHexagon Socket Countersunk Head Cap BoltDIN 7991:1986Carbon Steel, Zinc PlatedM4-M2012-150 mmHexagon Socket Countersunk Head Cap BoltJIS B 1194:2006Alloy Steel, Phosphate CoatedM6-M2420-200 mmHexagon Socket Countersunk Head Cap BoltASME B18.3.5M:1993SAE J429 Grade 5/8, Plain1/4"-3/4" (6.35-19.05 mm)0.5"-6" (12.7-152.4 mm)