# Buy Hex bolt Grade 5 electroplated UNC 5/8x3.1/2 | Autoservice ## Hex bolt Grade 5 electroplated UNC 5/8x3.1/2 Fasteners / Bolts / Bolts not metric Strong hex bolt with UNC 5/8" thread, electroplated for corrosion resistance. ## Prices and stock - **SIN-BL-BNC58-312**: € 5,85 incl. VAT — 16 in stock ## Order URL [Hex bolt Grade 5 electroplated UNC 5/8x3.1/2](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unc-58x312-1st) ## Alternate URLs - **nl**: [Hex bolt Grade 5 electroplated UNC 5/8x3.1/2](https://www.auto-service.be/nl/bevestigingsmateriaal/bouten/bouten-niet-metrisch/zeskantbout-grade-5-electrolitisch-verzinkt-unc-58x312-1st) - **fr**: [Hex bolt Grade 5 electroplated UNC 5/8x3.1/2](https://www.auto-service.be/fr/materiel-de-fixation/boulons/boulons-non-metriques/grade-5-boulon-electrozingue-unc-58x312-1pc) - **en**: [Hex bolt Grade 5 electroplated UNC 5/8x3.1/2](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unc-58x312-1st) ## Images - ![Product image](https://www.auto-service.be/assets/media/7944/conversions/zeskantbout-grade-5-electrolitisch-verzinkt-unc-58x312-1st-9220-optimized.jpg) ## Specifications - **Reference**: SIN-BL-BNC58-312 ## Product description ### Robust hex bolt for reliable connections This hex bolt with a diameter of 5/8 inch and a length of 3.1/2 inch is designed for strong and durable connections in various applications. Thanks to the Grade 5 classification, this bolt offers high tensile strength, which is essential for demanding constructions. ### Specifications - **Diameter:** 5/8 inch (15.88 mm) - **Length:** 3.1/2 inch (88.9 mm) - **Thread:** Unified National Coarse (UNC) with 11 threads per inch - **Material:** Steel, Grade 5 (comparable to 8.8) - **Surface treatment:** Electroplated for improved corrosion resistance - **Standard:** Complies with ASME B18.2.1 standard ### Benefits of electroplating The electroplating of this bolt provides a protective layer that shields the steel from corrosion. This extends the bolt's lifespan, even in humid or corrosive environments, and maintains its aesthetic appearance by minimizing rust formation. ### Applications This hex bolt is suitable for: - **Automotive sector:** Fastening parts where high tensile strength is required. - **Construction sector:** Structures exposed to varying weather conditions. - **Machine building:** Assemblies requiring reliability and durability. ### Installation and compatibility The hex head allows the bolt to be easily tightened with standard tools, such as an open-end or socket wrench. For optimal connection, it is recommended to combine this bolt with a matching Grade 5 hex nut with UNC 5/8" thread. This ensures a secure and strong fastening that can withstand high loads. ### Quality guarantee This hex bolt meets the ASME B18.2.1 standard, ensuring precise dimensions and high quality standards. The Grade 5 classification assures you of a bolt with excellent mechanical properties, suitable for demanding applications. ### Important considerations When selecting fasteners, it is crucial to choose the right specifications for the application. This hex bolt offers the combination of strength, durability, and corrosion resistance needed for reliable and long-lasting connections in various sectors. ## 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 - [Hex bolt Grade 5 electroplated UNC 3/8x5.1/2 (5 pieces)](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unc-38x512-5pcs) - [Hex bolt Grade 5 electroplated zinc UNC 7/8x3.1/2](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unc-78x312-1st) - [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 1/4x1.1/2 (100 pieces)](https://www.auto-service.be/en/fasteners/bolts/bolts-not-metric/hex-bolt-grade-5-electrolitic-zinc-plated-unf-14x112-100pcs) - 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