# Buy countersunk head hexagon socket bolt M6x40 at Autoservice ## Countersunk head hexagon socket bolt 8.8 zinc-plated M6x40 (5 pieces) Fasteners / Bolts / Countersunk head hexagonal Strong M6x40 hexagon socket bolt with countersunk head, ideal for a flush finish. ## Prices and stock - **SIN-BL-EV6-40**: € 2,51 incl. VAT — backorder ## Order URL [Countersunk head hexagon socket bolt 8.8 zinc-plated M6x40 (5 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m6x40-5pcs) ## Alternate URLs - **nl**: [Countersunk head hexagon socket bolt 8.8 zinc-plated M6x40 (5 pieces)](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/verzonkenkop-binnenzeskant/verzonken-kop-binnenzeskantbout-88-verzinkt-m6x40-5st) - **fr**: [Countersunk head hexagon socket bolt 8.8 zinc-plated M6x40 (5 pieces)](https://www.auto-service.be/fr/materiel-de-fixation/boulons/tete-fraisee-a-douille-hexagonale/vis-a-tete-fraisee-hc-et-filetage-complet-acier-galvanise-m6x40-5pc) - **en**: [Countersunk head hexagon socket bolt 8.8 zinc-plated M6x40 (5 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m6x40-5pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/16835/conversions/verzonken-kop-binnenzeskantbout-88-verzinkt-m6x40-5st-19315-optimized.jpg) ## Specifications - **Reference**: SIN-BL-EV6-40 ## Product description ### Product description This countersunk head hexagon socket bolt M6x40 is made from steel of quality class 8.8 and features an electrolytic zinc-plated finish. This ensures high tensile strength and good protection against corrosion, which is essential in various applications. ### Technical specifications - **Material** : Steel - **Quality class** : 8.8 - **Surface treatment** : Electrolytically zinc-plated - **Thread size** : M6 - **Length** : 40 mm - **Head shape** : Countersunk head - **Drive type** : Hexagon socket - **Wrench size** : 4 mm - **Head diameter** : 12 mm - **Head height** : 4.9 mm ### Applications This bolt is ideal for situations where a flush finish is desired, such as in the automotive sector, machine building, and metal constructions. The countersunk head ensures that the bolt sits flush with the surface after installation, contributing to a sleek and professional appearance. ### Advantages - **High tensile strength** : Thanks to the 8.8 quality class, this bolt offers a reliable and strong connection. - **Corrosion resistant** : The zinc-plated finish protects against rust, extending the lifespan. - **Flush finish** : The countersunk head ensures seamless integration into the material. ### Standards This hexagon socket bolt complies with DIN 7991 and ISO 10642 standards, ensuring consistency and reliability in dimensions and performance. ### Packaging The bolts are supplied in sets of 5 pieces, which is convenient for both small and larger projects. ### Compatibility For optimal fastening, it is recommended to combine these bolts with matching nuts and washers, tailored to the M6 thread size, to ensure a strong and secure connection. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Bolts](https://www.auto-service.be/en/fasteners/bolts) - [Countersunk head hexagonal](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal) ## Related products - [Countersunk head hex socket bolt 8.8 zinc plated M5x35 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m5x35-100pcs) - [Countersunk hex socket bolt 8.8 zinc plated M6x60 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m6x60-20pcs) - [Countersunk head hex socket bolt 8.8 zinc plated M8x12 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x12-20pcs) - [Countersunk hex socket bolt 8.8 zinc plated M8x30 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x30-20pcs) - [countersunk hex socket bolt 8.8 zinc plated M8x50](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x50-100pcs) ## Webshop catalogue - 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