# Buy carriage bolt M8x40 at Autoservice ## Carriage bolt electrolytically galvanized M8x40 with nut Fasteners / Bolts / Lock bolts Sturdy M8x40 mm carriage bolt with nut, ideal for wood and metal constructions. ## Prices and stock - **SIN-BC8-40-BULK**: € 64,58 incl. VAT — 1 in stock ## Order URL [Carriage bolt electrolytically galvanized M8x40 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electro-zinc-plated-m8x40-200pcs) ## Alternate URLs - **nl**: [Carriage bolt electrolytically galvanized M8x40 with nut](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/slotbouten/slotbout-electrolitisch-verzinkt-m8x40-200st) - **fr**: [Carriage bolt electrolytically galvanized M8x40 with nut](https://www.auto-service.be/fr/materiel-de-fixation/boulons/les-boulons-de-verrouillage/boulon-de-carrosserie-electrozingue-m8x40-200pc) - **en**: [Carriage bolt electrolytically galvanized M8x40 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electro-zinc-plated-m8x40-200pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/7862/conversions/slotbout-electrolitisch-verzinkt-m8x40-200st-9138-optimized.jpg) ## Specifications - **Reference**: SIN-BC8-40-BULK ## Product description ### Robust fastening for various applications This M8x40 mm carriage bolt is designed for strong and reliable connections in both wood and metal constructions. Thanks to the electrolytically galvanized finish, this bolt offers increased resistance to corrosion, extending the lifespan of your structures. ### Features and specifications - **Dimensions**: M8 diameter with a length of 40 mm - **Material**: Steel, electrolytically galvanized - **Quality class**: 4.6 - **Head shape**: Low dome head with square neck - **Thread length**: 22 mm - **Standard**: DIN 603/555 ### Advantages of the square neck The square neck under the head prevents turning while tightening the nut. This ensures efficient and safe assembly, especially for wood applications such as canopies, greenhouses, and gates. ### Includes matching nut Each carriage bolt is supplied with a matching hex nut according to DIN 934. This guarantees a complete set for immediate use, without the need to purchase additional parts. ### Versatile use This carriage bolt is suitable for various applications: - Wooden structures such as canopies and gates - Metal constructions where a strong connection is required - Fastening of foundation posts and joists for decking ### Durability and reliability The electrolytically galvanized finish provides excellent protection against rust and wear, ensuring your structures last longer and require less maintenance. ### Easy installation Thanks to the standard M8 size and the included nut, installation is quick and easy. The square neck ensures the bolt stays firmly in place while tightening. ### Technical details - **Head diameter**: 20.6 mm - **Head height**: 4.9 mm - **Nut width across flats**: 13 mm With this M8x40 mm carriage bolt, you choose a reliable and durable solution for all your fastening needs in wood and metal constructions. ## 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 - [Carriage bolt electrolytically galvanized M10x170 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electro-zinc-plated-m10x170-50pcs) - [Electrolytically galvanized carriage bolt M10x50 with nut](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolitic-zinc-plated-m10x50-20pcs) - [Carriage bolt electroplated M10x55 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/lock-bolts/carriage-bolt-electrolytic-zinc-plated-m10x55-100pcs) - 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