# Buy Hex bolt Grade 5 UNF 3/4x3.1/4 at Autoservice ## Hex bolt Grade 5 electroplated UNF 3/4x3.1/4 Fasteners / Bolts / Bolts not metric High-quality hex bolt with fine UNF thread, ideal for precise applications. ## Prices and stock - **SIN-BL-BNF34-314**: € 11,14 incl. VAT — backorder ## Order URL [Hex bolt Grade 5 electroplated UNF 3/4x3.1/4](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unf-34x314-1st) ## Alternate URLs - **nl**: [Hex bolt Grade 5 electroplated UNF 3/4x3.1/4](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/bouten-niet-metrisch/zeskantbout-grade-5-electrolitisch-verzinkt-unf-34x314-1st) - **fr**: [Hex bolt Grade 5 electroplated UNF 3/4x3.1/4](https://www.auto-service.be/fr/materiel-de-fixation/boulons/boulons-non-metriques/grade-5-boulon-electrozingue-unf-34x314-1pc) - **en**: [Hex bolt Grade 5 electroplated UNF 3/4x3.1/4](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unf-34x314-1st) ## Images - ![Product image](https://www.auto-service.be/assets/media/7988/conversions/zeskantbout-grade-5-electrolitisch-verzinkt-unf-34x314-1st-9265-optimized.jpg) ## Specifications - **Reference**: SIN-BL-BNF34-314 ## Product description ### Product description This Grade 5 steel hex bolt is designed for applications where precision and reliability are essential. With a diameter of 3/4 inch and a length of 3.1/4 inch, this bolt offers the perfect balance between strength and sizing. ### Material and finish - **Material**: High-quality Grade 5 steel, comparable to strength class 8.8, ensuring excellent mechanical properties. - **Surface treatment**: Electrolytically zinc plated, providing a protective layer against corrosion and extending the bolt's lifespan. ### Thread type and specifications - **Thread type**: Unified National Fine (UNF) with 16 threads per inch, ideal for applications requiring fine threading. - **Standard**: Complies with the ASME B18.2.1 standard, ensuring consistency and compatibility with other components. ### Applications This hex bolt is suitable for various applications, including: - **Automotive sector**: For mounting parts where precision and strength are required. - **Machine building**: Ideal for constructions that need fine threading for precise assembly. - **Construction work**: Suitable for connections exposed to dynamic loads and vibrations. ### Advantages - **High strength**: Thanks to the Grade 5 steel, this bolt offers excellent tensile strength and durability. - **Corrosion resistant**: The electroplated zinc coating protects against rust and extends lifespan. - **Precision**: The UNF thread ensures a precise and secure connection. ### Dimensions and specifications - **Diameter**: 3/4 inch - **Length**: 3.1/4 inch - **Thread type**: UNF with 16 threads per inch - **Standard**: ASME B18.2.1 - **Material**: Grade 5 steel - **Surface treatment**: Electrolytically zinc plated ### Compatibility This bolt is compatible with nuts and other fasteners that meet the UNF standard, ensuring wide applicability in various uses. ### Installation For optimal installation, it is recommended to use the correct tool that fits the hex head, and to tighten the bolt according to the prescribed torque to ensure the integrity of the connection. ## Breadcrumbs - [Fasteners](https://www.auto-service.be/en/fasteners) - [Bolts](https://www.auto-service.be/en/fasteners/bolts) - [Bolts not metric](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric) ## Related products - [Grade 5 electrolytically galvanized bolt UNC 1 x 7 inch](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/grade-5-electrolitic-zinc-plated-bolt-unc-1inx7in-1st) - [Hex bolt Grade 5 electroplated UNF 3/4x6 inch](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unf-34x6in-1st) - [Hex bolt Grade 5 electroplated UNF 5/16x1.1/2 (5 pieces)](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electro-zinc-plated-unf-516x112-5pcs) - [Hex bolt Grade 5 electroplated UNF 5/8x3.1/2](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unf-58x312-1st) - [Hex bolt Grade 5 electroplated UNF 1/2x2.in. 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