Our Hexagon Flange Bolts with Metric Fine Pitch Thread - Small Series are engineered for efficient and reliable assembly: Integrated Flange: Eliminates the need for separate washers, simplifying the assembly process, reducing part count, and ensuring proper load distribution. Standard Hex Head: Allows for easy tightening with commonly available wrenches and sockets. Pilot Point (Optional): Some variations may include a pilot point to aid in initial alignment and prevent cross-threading during installation, especially beneficial in automated assembly lines. Reduced Risk of Loosening: The inherent self-locking property of fine pitch threads minimizes the risk of the bolt loosening over time due to vibration and thermal cycling. Key Advantages for Your Applications: Superior Vibration Resistance: The fine pitch thread provides exceptional resistance to loosening in high-vibration automotive environments. Precise Preload Control: Allows for accurate tightening and optimal clamping force, crucial for sensitive components. Enhanced Load Distribution: The integrated flange distributes the clamping force evenly, reducing stress on the joined parts. Simplified Assembly: Eliminates the need for separate washers, reducing assembly time and part complexity. Improved Joint Integrity: The combination of the flange and fine pitch thread ensures a more secure and reliable connection. Reduced Risk of Damage: Precise preload control minimizes the risk of over-tightening and damaging components. Ideal for: Engine Components: Securing cylinder heads, manifolds, and other critical engine parts where vibration and precise clamping are essential. Transmission Assemblies: Fastening components within the transmission where secure connections under dynamic loads are required. Braking Systems: Attaching brake calipers, rotors, and other components where vibration resistance is critical for safety. Exhaust Systems: Securing exhaust manifolds and pipes, which are subject to significant vibration and thermal stress. Steering and Suspension Systems: Fastening critical linkages and components where precise preload and resistance to loosening are vital for vehicle handling and safety. Sensor Mounting: Providing secure and vibration-resistant mounting for sensitive electronic sensors throughout the vehicle. High-Precision Automotive Electronics: Fastening components in electronic control units (ECUs) and other sensitive electronic assemblies where controlled clamping force is necessary. Product NameStandardMaterial & FinishDiameterLengthHexagon Bolts with Flange Grade 10.9ISO 416242CrMo4 Alloy Steel, Zinc PlatedM8 (8 mm)20 mmHexagon Bolts with Flange Grade 10.9ISO 416242CrMo4 Alloy Steel, Dacromet CoatedM10 (10 mm)25 mmHexagon Bolts with Flange Grade 10.9ISO 416242CrMo4 Alloy Steel, Black OxideM12 (12 mm)30 mmHexagon Bolts with Flange Grade 10.9DIN 692134CrMo4 Steel, Hot-Dip GalvanizedM14 (14 mm)40 mmHexagon Bolts with Flange Grade 10.9DIN 692134CrMo4 Steel, PlainM16 (16 mm)50 mmHexagon Bolts with Flange Grade 10.9ASME B18.2.3.5MASTM A490 Alloy Steel, Zinc Plated3/8" (9.525 mm)1.5" (38.1 mm)Hexagon Bolts with Flange Grade 10.9ASME B18.2.3.5MASTM A490 Alloy Steel, Plain1/2" (12.7 mm)2" (50.8 mm)Hexagon Bolts with Flange Grade 10.9GB/T 16674.2-201635CrMo Steel, ElectrogalvanizedM8×1 (8 mm)20 mmHexagon Bolts with Flange Grade 10.9GB/T 16674.2-201635CrMo Steel, PhosphatedM10×1.25 (10 mm)25 mmHexagon Bolts with Flange Grade 10.9JIS B1180SCM435 Alloy Steel, Zinc FlakeM12×1.5 (12 mm)30 mm