# Buy carriage bolt M12x40 at Autoservice ## Carriage bolt electrolytically galvanized M12x40 (10 pieces) Fasteners / Bolts / Lock bolts Sturdy M12x40 carriage bolts with electrolytic galvanization for reliable fastening. ## Prices and stock - **SIN-BC12-40**: € 11,27 incl. VAT — backorder ## Order URL [Carriage bolt electrolytically galvanized M12x40 (10 pieces)](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m12x40-10pcs) ## Alternate URLs - **nl**: [Carriage bolt electrolytically galvanized M12x40 (10 pieces)](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/slotbouten/slotbout-electrolitisch-verzinkt-m12x40-10st) - **fr**: [Carriage bolt electrolytically galvanized M12x40 (10 pieces)](https://www.auto-service.be/fr/materiel-de-fixation/boulons/les-boulons-de-verrouillage/boulon-de-carrosserie-electrozingue-m12x40-10pc) - **en**: [Carriage bolt electrolytically galvanized M12x40 (10 pieces)](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m12x40-10pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/7745/conversions/slotbout-electrolitisch-verzinkt-m12x40-10st-9021-optimized.jpg) ## Specifications - **Reference**: SIN-BC12-40 ## Product description ### Robust carriage bolts for various applications These M12x40 carriage bolts are ideal for secure fastening in a wide range of constructions. Thanks to the electrolytic galvanization, they are highly resistant to corrosion, significantly extending their lifespan. ### Technical specifications - **Diameter:** M12 - **Length:** 40 mm - **Thread length:** 30 mm - **Thread type:** Metric - **Head shape:** Low dome head - **Drive type:** Hexagon - **Wrench size:** 19 mm - **Head height:** 6.9 mm - **Head diameter:** 30.6 mm - **Material:** Steel - **Strength class:** 4.6 - **Surface treatment:** Electrolytically galvanized - **Standard:** DIN 603/555 ### Advantages of electrolytically galvanized carriage bolts - **Corrosion resistance:** The electrolytic galvanization provides a protective layer against rust. - **Durability:** Increases the lifespan of the bolts, even in humid conditions. - **Aesthetic appeal:** The galvanized finish ensures a neat and professional appearance. ### Application possibilities These carriage bolts are suitable for: - **Wood constructions:** Ideal for securely joining wooden elements. - **Metal connections:** Suitable for fastening metal parts. - **General construction works:** Versatile for various building and assembly projects. ### Installation instructions 1. **Pre-drilling:** Drill a hole with the correct diameter at the desired location. 2. **Placement:** Insert the carriage bolt through the hole, with the dome head on the visible side. 3. **Securing:** Tighten the supplied hex nut at the back using a 19 mm wrench. ### Maintenance and storage - **Storage:** Store the bolts in a dry place to maintain quality. - **Maintenance:** Periodically check for signs of wear or corrosion and replace if necessary. With these electrolytically galvanized M12x40 carriage bolts, you are assured of a reliable and durable fastening for all your projects. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Bolts](https://www.auto-service.be/en/fasteners/bolts) - [Lock bolts](https://www.auto-service.be/en/fasteners/bolts/lock-bolts) ## Related products - [Electrolytically galvanized carriage bolt M10x50 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m10x50-100pcs) - [Carriage bolt electrolytically galvanized M12x300 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m12x300-5pcs) - [Electrolytically zinc-plated carriage bolt M12x55 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electro-zinc-plated-m12x55-50pcs) - [Electrolytically galvanized carriage bolt M6x100 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m6x100-20pcs) - 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