# Buy stainless steel A2 serrated lock washer DIN 6798A M4 at Autoservice ## Stainless steel A2 serrated lock washer DIN 6798A M4 with external teeth Fasteners / Rings / External spring washers Self-locking stainless steel A2 serrated lock washer M4 according to DIN 6798A standard, prevents loosening of bolts and nuts. ## Prices and stock - **SIN-RVSAC4**: € 6,53 incl. VAT — backorder ## Order URL [Stainless steel A2 serrated lock washer DIN 6798A M4 with external teeth](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/stainless-steel-a2-toothed-ring-din6798a-m4-50pcs) ## Alternate URLs - **nl**: [Stainless steel A2 serrated lock washer DIN 6798A M4 with external teeth](https://www.auto-service.be/nl/bevestigingsmateriaal/ringen/buitentandveerringen/rvs-a2-tandveerring-din6798a-m4-50st) - **fr**: [Stainless steel A2 serrated lock washer DIN 6798A M4 with external teeth](https://www.auto-service.be/fr/materiel-de-fixation/anneaux/rondelles-elastiques-dentelees-a-lexterieur/rondelle-a-dents-a2-acier-inox-din6798a-m4-50pc) - **en**: [Stainless steel A2 serrated lock washer DIN 6798A M4 with external teeth](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/stainless-steel-a2-toothed-ring-din6798a-m4-50pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/9296/conversions/rvs-a2-tandveerring-din6798a-m4-50st-10591-optimized.jpg) ## Specifications - **Reference**: SIN-RVSAC4 ## Product description ### Reliable locking for your fastenings When assembling bolts and nuts, it is essential to ensure they remain securely fastened. The stainless steel A2 serrated lock washer M4 with external teeth, compliant with DIN 6798A, offers an effective solution against loosening due to vibrations or dynamic loads. ### High-quality material composition This lock washer is made from corrosion-resistant A2 stainless steel, also known as 18/8 steel (18% chromium and 8% nickel). This material is renowned for its excellent corrosion resistance under normal atmospheric conditions, making it suitable for various applications both indoors and outdoors. ### Technical specifications - **Inner diameter (d1):** 4.3 mm - **Outer diameter (d2):** 8.0 mm - **Thickness (s1):** 0.5 mm - **Standard:** DIN 6798A - **Material:** Stainless steel A2 (AISI 304) ### Areas of application The M4 lock washer is ideal for use in: - **Automotive sector:** Securing components subject to vibrations. - **Mechanical engineering:** Locking bolts and nuts in moving parts. - **Electrical installations:** Ensures reliable electrical contacts and prevents loosening due to thermal expansion. ### Advantages of external teeth The external teeth of this lock washer grip firmly into the surface of the material being fastened, resulting in: - **Increased friction:** Effectively prevents bolts and nuts from loosening. - **Better grip:** Provides a stable and secure connection, even under dynamic loads. ### Compatibility and installation This lock washer is designed for use with M4 bolts and nuts. Installation is simple: 1. Place the lock washer over the bolt, with the teeth facing the material to be fastened. 2. Tighten the nut to the desired tension. Proper installation guarantees optimal locking, increasing the lifespan and reliability of your constructions. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Rings](https://www.auto-service.be/en/fasteners/rings) - [External spring washers](https://www.auto-service.be/en/fasteners/rings/external-spring-washers) ## Related products - [Toothed lock washer DIN 6798A electrolytically galvanized M12 (50 pieces)](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/toothed-ring-din6798a-electrolitic-zinc-plated-m12-50pcs) - [Toothed lock washer DIN6798A electrolytically galvanized M12 (100 pieces)](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/toothed-ring-din6798a-electrolitic-zinc-plated-m12-100pcs) - [Toothed lock washer DIN 6798A electrolytically galvanized M3 (200 pieces)](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/toothed-ring-din6798a-electrolitic-zinc-plated-m3-200pcs) - [Toothed lock washer DIN6798A electrolytically zinc-plated M5 (200 pieces)](https://www.auto-service.be/en/fasteners/rings/external-spring-washers/toothed-ring-din6798a-electrolitic-zinc-plated-m5-200pcs) - 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