# Buy Hex bolt 8.8 DIN 933 M4x40 at Autoservice ## Hex bolt 8.8 DIN 933 electrolytically galvanized M4x40 (100 pieces) Fasteners / Bolts / Hexagon tapping bolts High-quality M4x40 hex bolts with hex head, fully metric thread and electrolytically galvanized for optimal protection. ## Prices and stock - **SIN-C4-40-BULK**: € 27,55 incl. VAT — 2 in stock ## Order URL [Hex bolt 8.8 DIN 933 electrolytically galvanized M4x40 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stud-bolt-88-din-933-electrolitic-zinc-plated-m4x40-100pcs) ## Alternate URLs - **nl**: [Hex bolt 8.8 DIN 933 electrolytically galvanized M4x40 (100 pieces)](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/zeskant-tapbouten/tapbout-88-din-933-electrolitisch-verzinkt-m4x40-100st) - **fr**: [Hex bolt 8.8 DIN 933 electrolytically galvanized M4x40 (100 pieces)](https://www.auto-service.be/fr/materiel-de-fixation/boulons/boulons-a-tete-hexagonale/boulons-hexagonaux-88-din-933-acier-zingue-m4x40-100pc) - **en**: [Hex bolt 8.8 DIN 933 electrolytically galvanized M4x40 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stud-bolt-88-din-933-electrolitic-zinc-plated-m4x40-100pcs) ## Images - ![Product image](https://www.auto-service.be/assets/media/6307/conversions/tapbout-88-din933-electrolitisch-verzinkt-m4x40-100st-7548-optimized.jpg) ## Specifications - **Reference**: SIN-C4-40-BULK ## Product description ### Robust hex bolts for various applications These hex bolts with hexagonal head are made from class 8.8 steel, ensuring high tensile strength and reliability in a wide range of applications. The fully metric thread runs up to the head, guaranteeing a strong and secure fastening. ### Specifications - **Diameter** : M4 - **Length** : 40 mm - **Wrench size** : 7 mm - **Head height** : 2.8 mm - **Thread specification** : Metric, pitch 0.7 mm - **Material** : Steel 8.8 - **Surface treatment** : Electrolytically galvanized - **Standard** : DIN 933 / ISO 4017 ### Advantages of electrolytic galvanization Electrolytic galvanization provides excellent protection against corrosion, extending 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 bolts are ideal for connecting and fastening parts in various sectors, including: - **Automotive** : Fastening body and engine parts - **Construction** : Assembly of metal structures and frames - **Mechanical engineering** : Assembly of machines and equipment ### Compatibility with other fasteners For optimal fastening, these hex bolts can be combined with matching nuts and washers, such as: - **Hex nuts DIN 934** : For a strong connection - **Flat washers DIN 125A** : For distributing the load and protecting the fastened material - **Spring washers DIN 127B** : To prevent loosening due to vibrations ### Quality and compliance These hex bolts comply with DIN 933 and ISO 4017 standards, ensuring consistency in dimensions and quality. The 8.8 grade indicates high tensile strength, suitable for applications where reliability is essential. ### Packaging and availability The hex bolts are supplied in packs of 100 pieces, which is convenient for both small and larger projects. They are immediately available for delivery, so you can quickly get started with your fastening tasks. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Bolts](https://www.auto-service.be/en/fasteners/bolts) - [Hexagon tapping bolts](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts) ## Related products - [Hex bolt M8x30 electroplated zinc DIN 933 8.8](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stud-m8x30-100pcs) - [Hex bolt 8.8 DIN 933 electrolytically galvanized M16x120 (25 pieces)](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stud-bolt-88-din-933-electrolitic-zinc-plated-m16x120-25pcs) - [Hex bolt M22x70 8.8 DIN 933 electroplated zinc](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stud-bolt-88-din-933-electrolitic-zinc-plated-m22x70-5pcs) - [Stainless steel A4 hex bolt DIN 933 M6x80 with hex head](https://www.auto-service.be/en/fasteners/bolts/hexagon-tapping-bolts/stainless-steel-a4-stud-din933-m6x80-100pcs) - 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