DIN 933 Hexagon Head Screws are designed for straightforward and efficient assembly in automotive production lines: Key Advantages for Your Applications: Maximum Holding Power: The full thread design ensures optimal engagement and resistance to pull-out forces, crucial for maintaining the integrity of automotive assemblies. Excellent Vibration Resistance: The tight thread engagement along the entire length helps to resist loosening caused by the vibrations inherent in vehicle operation. Ease of Assembly: The standard hex head allows for quick and efficient tightening using common tools, contributing to streamlined production processes. Versatile Application: Suitable for a wide range of fastening tasks throughout the vehicle, from structural components to engine and transmission assemblies. Standardized and Readily Available: DIN 933 is a widely recognized standard, ensuring the availability of these screws from numerous suppliers globally. Cost-Effective Solution: Offers a reliable and standardized fastening method at a competitive cost. Ideal for: Engine Assembly: Securing various engine components, brackets, and housings. Transmission Mounting: Fastening the transmission to the vehicle chassis. Chassis and Suspension Systems: Connecting structural members, brackets, and suspension components (often utilizing higher strength grades within DIN 933). Body Panel Attachment: Securing various interior and exterior body panels and trims. Seating Systems: Fastening seat frames, rails, and adjustment mechanisms. Exhaust System Mounting: Securing exhaust pipes, manifolds, and catalytic converters. Accessory Mounting: Attaching various automotive accessories, such as lights, sensors, and brackets. Product NameStandardMaterial & FinishDiameterLengthHexagon Head ScrewsGB/T 5783-2016Carbon Steel, Zinc PlatedM6 (6 mm)20 mmHexagon Head ScrewsGB/T 5783-2016Carbon Steel, Dacromet CoatedM8 (8 mm)25 mmHexagon Head ScrewsGB/T 5783-2016Stainless Steel (A2-70)M10 (10 mm)30 mmHexagon Head ScrewsISO 4017:20228.8 Grade Steel, Black OxideM12 (12 mm)40 mmHexagon Head ScrewsDIN 933:1987Carbon Steel, Hot-Dip GalvanizedM16 (16 mm)50 mmHexagon Head ScrewsASME B18.2.3.1MASTM A307 Steel, Plain1/4" (6.35 mm)1" (25.4 mm)Hexagon Head ScrewsJIS B 1180:2014SCM435 Alloy Steel, Zinc FlakeM20 (20 mm)100 mmHexagon Head ScrewsEN ISO 4017:202210.9 Grade Steel, PhosphatedM24 (24 mm)120 mmHexagon Head ScrewsISO 4018:2022Carbon Steel, ElectroplatedM6 (6 mm)25 mmHexagon Head ScrewsDIN 931:19878.8 Grade Steel, PlainM8 (8 mm)30 mmHexagon Head ScrewsASME B18.2.1ASTM A325 Steel, Zinc Plated5/16" (7.94 mm)1.5" (38.1 mm)Hexagon Head ScrewsJIS B 1180 (ISO 8676)12.9 Grade Steel, DacrometM12 (12 mm)50 mmHexagon Head ScrewsEN 14399-8:2007HV Grade Steel, PTFE CoatedM16 (16 mm)60 mmHexagon Head ScrewsISO 8765:2022Alloy Steel, Black OxideM10 (10 mm)80 mm