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Home Product 5/16-18*2-3/8 Hex Bolt Heavy-Duty Grade 8 Coarse Thread Fastener for Automotive Machinery
US hexagon socket head cap 5/16-18*2-3/8

5/16-18*2-3/8 Hex Bolt Heavy-Duty Grade 8 Coarse Thread Fastener for Automotive Machinery

5/16-18 x 2-3/8 bolt
5/16-18 threaded fastener
2-3/8 inch hex bolt
5/16-18*2-3/8
5/16-18 x 2-3/8 bolt with hex head, precision 5/16-18 threaded fastener for industrial applications. High-strength 2-3/8 inch hex bolt features zinc-plated finish for corrosion resistance. Designed with standard UNC threads and wrench-friendly hexagonal head. Ideal for machinery, automotive, and construction projects requiring durable fastening. ASTM/SAE compliant.
Categories:Fasteners & Fixings
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Product Description

The 5/16-18 x 2-3/8 inch hex bolt is a threaded fastener designed for high-stress applications requiring reliable mechanical fastening. This 2-3/8 inch long bolt features a 5/16-18 UNF thread pattern with a hexagonal head for wrench compatibility. Manufactured from Grade 5 carbon steel, it offers a tensile strength of 120,000 psi and is zinc-plated for corrosion resistance in industrial environments (-40°F to 200°F operational range). Widely used in automotive assemblies, machinery frames, and structural supports, this hex bolt ensures secure connections in vibration-prone systems. Its standardized dimensions allow integration with 5/16-18 threaded nuts or tapped components. While optimized for general-purpose use, extended exposure to marine environments may require additional coatings. The balanced design combines shear strength (85,000 psi) with straightforward installation, making it ideal for maintenance and production lines.
Parameter Specification
Product Type Hex Bolt
Thread Size 5/16-18 UNC
Thread Pitch 18 threads per inch (1.411 mm)
Nominal Diameter 0.3125 in (7.938 mm)
Shank Length 2-3/8 in (60.325 mm)
Head Style Hexagonal
Drive Type Hex Socket (Allen) or Wrench
Material Grade ASTM A307 / SAE J429 Grade 2
Tensile Strength ≥60,000 PSI
Surface Finish Zinc Plated (Class 3A)
Thread Engagement Minimum 1.5xD (0.469 in)
Torque Specification 8-10 ft-lb (dry)
question:Do you accept payment after delivery?
answer:Payment terms are prepaid; exceptions require case-by-case approval and credit checks.
question:Do you provide technical selection services?
answer:Yes, our team offers technical guidance to help clients choose suitable products.
question:What is the minimum order quantity (MOQ)?
answer:MOQ varies by product; contact us for specifics tailored to your requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Do you accept payment after delivery?
answer:Payment terms are prepaid; exceptions require case-by-case approval and credit checks.
question:Do you provide technical selection services?
answer:Yes, our team offers technical guidance to help clients choose suitable products.
question:What is the minimum order quantity (MOQ)?
answer:MOQ varies by product; contact us for specifics tailored to your requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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