# Buy countersunk head hex socket bolt M8x40 | Autoservice ## Countersunk head hex socket bolt 8.8 zinc plated M8x40 (20 pieces) Fasteners / Bolts / Countersunk head hexagonal Strong M8x40 countersunk head hex socket bolts, class 8.8, zinc plated for optimal corrosion resistance. ## Prices and stock - **SIN-EV8-40**: € 10,86 incl. VAT — backorder ## Order URL [Countersunk head hex socket bolt 8.8 zinc plated M8x40 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x40-20pcs) ## Alternate URLs - **nl**: [Countersunk head hex socket bolt 8.8 zinc plated M8x40 (20 pieces)](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/verzonkenkop-binnenzeskant/verzonken-kop-binnenzeskantbout-88-verzinkt-m8x40-20st) - **fr**: [Countersunk head hex socket bolt 8.8 zinc plated M8x40 (20 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-m8x40-20pc) - **en**: [Countersunk head hex socket bolt 8.8 zinc plated M8x40 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x40-20pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/8251/conversions/verzonken-kop-binnenzeskantbout-88-verzinkt-m8x40-20st-9532-optimized.jpg) ## Specifications - **Reference**: SIN-EV8-40 ## Product description ### High-quality fastening for various applications These countersunk head hex socket bolts with an M8x40 size are made from steel of strength class 8.8. They provide a reliable and strong connection for a wide range of constructions and assemblies. ### Technical specifications - **Thread size:** M8 - **Length:** 40 mm - **Strength class:** 8.8 - **Material:** Steel, zinc plated - **Standard:** DIN 7991 / ISO 10642 - **Wrench size:** 5 mm - **Head diameter:** 16 mm - **Head height:** 4.4 mm ### Advantages of countersunk head hex socket bolts - **Aesthetic finish:** The countersunk head ensures a flush finish, ideal for applications where a smooth surface is desired. - **High strength:** Thanks to the 8.8 strength class, these bolts are suitable for applications requiring high tensile strength. - **Corrosion resistance:** The zinc plating provides extra protection against rust and corrosion, extending the lifespan of the bolts. ### Areas of application These bolts are suitable for various uses, including: - **Automotive sector:** Fastening parts in cars and other vehicles. - **Machine construction:** Assembly of machines and equipment. - **Construction sector:** Structures where a flush finish and high strength are required. ### Packaging and availability This set contains 20 pieces of M8x40 countersunk head hex socket bolts, ideal for both small and larger projects. They are available directly from stock for quick deployment. ### Important considerations When using these bolts, it is important to use the correct wrench size of 5 mm for optimal tightening. Ensure the bolts are installed correctly to guarantee maximum performance and safety. ## 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 M10x35 (50 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m10x35-50pcs) - [Countersunk hex socket bolt 8.8 zinc plated M5x30 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m5x30-20pcs) - [Countersunk hex socket bolt 8.8 zinc plated M6x16 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m6x16-20pcs) - [countersunk hex socket bolt 8.8 zinc plated M8x10 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/countersunk-head-hexagonal/countersunk-head-hexagonal-bolt-88-zinc-plated-m8x10-100pcs) - 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