# Buy hex socket head bolt 8.8 DIN912 M4x40 at Autoservice ## Hex socket head bolt 8.8 DIN912 electrolytically galvanized M4x40 (20 pieces) Fasteners / Bolts / Hexagon head bolts High-quality M4x40 hex socket head bolts, class 8.8, electrolytically galvanized for optimal protection. ## Prices and stock - **SIN-E4-40**: € 8,22 incl. VAT — 18 in stock ## Order URL [Hex socket head bolt 8.8 DIN912 electrolytically galvanized M4x40 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/inner-hex-bolt-88-din912-electrolitic-zinc-plated-m4x40-20pcs) ## Alternate URLs - **nl**: [Hex socket head bolt 8.8 DIN912 electrolytically galvanized M4x40 (20 pieces)](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/binnenzeskantbouten/binnen-zeskant-bout-88-din912-electrolitisch-verzinkt-m4x40-20st) - **fr**: [Hex socket head bolt 8.8 DIN912 electrolytically galvanized M4x40 (20 pieces)](https://www.auto-service.be/fr/materiel-de-fixation/boulons/boulons-a-six-pans-creux/boulon-a-six-pans-88-din912-electrozingue-m4x40-20pc) - **en**: [Hex socket head bolt 8.8 DIN912 electrolytically galvanized M4x40 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/inner-hex-bolt-88-din912-electrolitic-zinc-plated-m4x40-20pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/6678/conversions/binnen-zeskant-bout-88-din912-electrolitisch-verzinkt-m4x40-20st-7932-optimized.jpg) ## Specifications - **Reference**: SIN-E4-40 ## Product description ### Robust hex socket head bolts for reliable fastening These hex socket head bolts with cylinder head are manufactured according to the DIN 912 standard and provide a strong and secure fastening for various applications. Thanks to the hex socket drive, you can easily and efficiently assemble them with an Allen key. ### Specifications and dimensions - **Diameter**: M4 - **Length**: 40 mm - **Quality class**: 8.8 - **Drive**: Hex socket (Allen) - **Head shape**: Cylinder head - **Material**: Steel - **Surface treatment**: Electrolytically galvanized - **Thread direction**: Right ### Advantages of electrolytic galvanization The electrolytic galvanization provides an extra layer of protection against corrosion, which extends the lifespan of the bolts. This makes them suitable for use in environments where moisture and other corrosive elements are present. ### Application possibilities These hex socket head bolts are ideal for: - **Automotive applications**: Fastening parts in cars. - **Machine construction**: Assembly of machine parts. - **Construction work**: General construction applications where a strong connection is required. ### Compatibility and assembly The M4x40 dimensions make these bolts compatible with a wide range of nuts and other fasteners. The hex socket drive ensures a firm grip during tightening, reducing the risk of damaging the bolt head. ### Packaging and availability This set contains 20 hex socket head bolts, sufficient for multiple applications. They are immediately available for use in your projects. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Bolts](https://www.auto-service.be/en/fasteners/bolts) - [Hexagon head bolts](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts) ## Related products - [Hexagon socket head cap screw 8.8 DIN912 electroplated zinc M10x30 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/inner-hex-bolt-88-din912-electrolitic-zinc-plated-m10x30-100pcs) - [Socket head cap screw 8.8 DIN912 electroplated zinc M6x100 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/inner-hex-bolt-88-din912-electrolitic-zinc-plated-m6x100-100pcs) - [Hex socket head bolt 8.8 DIN912 electrolytically galvanized M6x80 (20 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/inner-hex-bolt-88-din912-electrolitic-zinc-plated-m6x80-20pcs) - [Stainless steel A2 hex socket cap screw DIN 912 M6x16 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-head-bolts/stainless-steel-a2-hexagon-socket-bolt-din912-m6x16-100pcs) - 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