Learn more about DIN standard fasteners with us | Auto parts manufacturer At Zhejiang Zhongrui Auto Parts , we understand that fasteners are the backbone of mechanical and engineering systems, playing a critical role in ensuring the reliability and performance of countless applications, especially within the automotive industry. We specialize in manufacturing fasteners according to precise specifications, with a strong focus on metric fasteners and adherence to commonly used DIN standards . Navigating the world of metric fasteners and their associated DIN standards is essential for identifying and selecting the right components for your projects. Knowing these standards helps ensure your fasteners are reliable, efficient, and compatible with intended uses. Here is an overview of some of the DIN metric fastener standards and product types we are familiar with and supply, highlighting their relevance for EV and engineering machinery applications: DIN 1 — Taper Pins (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 117) Used for precise positioning and alignment in EV components and engineering machinery assemblies, ensuring critical parts are correctly located. DIN 7 — Dowel Pins (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 119) Essential for component location and alignment in EV powertrains and heavy machinery, providing robust positioning for reliable assembly. DIN 84A — Slotted Cheese head machine screws (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 65) Often used for securing panels and electrical components in vehicle interiors and machinery housings where a low-profile head is needed. DIN 84 Z1 — Slott. cheese hd assem. scrs. w/capt. f/w (Equivalent GB/T standard NO. & For reference GB/T standard NO.: Varies) Used for specific assembly applications where a captive fastener with a slotted cheese head is required for panel or component attachment. DIN 85 A — Slotted pan head machine screws (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 67) Common for general fastening of covers, brackets, and light components in automotive and machinery applications, offering easy slot drive. DIN 93 — Tab washers with long tab (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 855) Used to prevent nuts or bolts from loosening by bending the tab against a flat surface, providing a mechanical lock in various assemblies. DIN 94 — Cotter pins (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 91; ISO 1234) Essential for securing other fasteners like castle nuts or clevis pins, providing a simple and reliable locking mechanism in many vehicle systems. DIN 95 — Slotted oval head machine screws (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 68) Offers a decorative or low-profile finish while providing secure fastening in interior or exterior panel applications. DIN 96 — Slotted round head wood screws (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 99) Primarily used in woodworking applications within vehicle interiors (e.g., securing wooden panels or trim) or light machinery frames. DIN 97 — Slotted flat head wood screws (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 100) Used for flush fastening in woodworking applications within vehicle interiors or machinery, providing a clean surface finish. DIN 103 — Acme threaded rod (Equivalent GB/T standard NO. & For reference GB/T standard NO.: Varies) Used in linear motion applications such as lead screws in machinery, providing precise movement and load transmission. DIN 124 — Round head rivets (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 861) Used for creating permanent joints in sheet metal or thin materials within vehicle bodies or machinery structures. DIN 125 A — Flat washer without chamfer (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 97.1; ISO 7089) Fundamental for load distribution and surface protection under bolt heads and nuts in general automotive and machinery assemblies. DIN 125 B — Flat washer with chamfer (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 97.2; ISO 7090) Similar to DIN 125 A but with a chamfered edge, often used in precision applications or where aesthetics are a concern. DIN 126 — Flat washer without chamfer (Equivalent GB/T standard NO. & For reference GB/T standard NO.: Varies, often coarser series) Used for load distribution in general or less critical assemblies. DIN 127A — Split lock washer with bend ends (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 94.1; ISO 8734) Provides vibration resistance by exerting spring tension and biting into mating surfaces, helping to prevent fastener loosening. DIN 127 B — Split lock washer with flat ends (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 94.1; ISO 8734) Similar to DIN 127A but with flat ends, providing spring tension to resist loosening. DIN 128 A — Split spring washers, curved (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 859.1; ISO 7094) Provides spring force to compensate for settling or thermal expansion, maintaining preload in bolted joints. DIN 128 B — Split spring washers, waved (Equivalent GB/T standard NO. & For reference GB/T standard NO.: GB/T 955; ISO 8752) Similar to DIN 128 A but with a waved shape, providing spring force to maintain preload. DIN 137 A — Spring washer, curved (Equivalent GB/T standard NO. & For reference GB/T standard NO.: Varies) Exerts spring force to compensate for axial play or maintain preload in specific assemblies. <span style="outline: none; font-style: inh