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Hex Nuts | High Tensile Steel BZP (Zinc Plated) | DIN 934
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Premium Grade 8 high-tensile hex nuts with DIN 934 threading and Bright Zinc Plated finish for excellent strength and corrosion resistance. Made from heat-treated medium carbon alloy steel, these nuts are designed for high-load automotive, construction, industrial, and agricultural applications. Pair with equal or higher strength bolts (e.g., Grade 8.8 or 10.9) and use flat washers to distribute load and locking washers for vibration resistance. Torque to spec with a calibrated wrench to prevent thread damage; compatible with metric coarse threads in standard sizes. Grade 8 High Tensile Hex Nuts (DIN 934) - BZP Finish
Engineered for maximum strength and long-term reliability, our Grade 8 High Tensile Hex Nuts provide a secure fastening solution for your most critical applications. Featuring a robust Bright Zinc Plated (BZP) finish, these nuts deliver exceptional load-bearing capacity combined with superior protection against corrosion. They are the professional's choice for projects where safety and performance are non-negotiable.
Key Features & Benefits
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Exceptional Strength for Critical Loads: Manufactured from heat-treated Grade 8 alloy steel to handle extreme tension and shear forces in high-stress environments like automotive suspensions and structural steelwork.11
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Superior Corrosion Resistance: Coated with a durable Bright Zinc Plating (BZP) that acts as a sacrificial layer to protect the underlying steel from rust and environmental degradation, extending the life of your assembly.10
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Precision Engineering & Guaranteed Fit: Manufactured to the strict dimensional tolerances of the DIN 934 standard, ensuring consistent quality, precise threading, and perfect compatibility with corresponding metric bolts.22
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Versatile High-Performance Applications: The ideal choice for demanding projects in the automotive, construction, industrial machinery, and agricultural sectors where fastener failure is not an option.15
Applications
These high-strength hex nuts are essential for any application requiring a secure, load-bearing connection. Ideal for both professional trades and advanced DIY projects.
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Automotive & Motorsport: Securing engine mounts, suspension components, chassis frames, brake systems, and drivetrain assemblies.15
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Construction & Structural Engineering: Fastening steel beams and columns, bridge assembly, and anchoring heavy equipment to concrete foundations.11
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Industrial & Agricultural Machinery: Vital for the assembly and maintenance of presses, lathes, bulldozers, tractors, and other heavy-duty equipment subject to high vibration and stress.17
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Advanced DIY Projects: Perfect for vehicle restoration, custom trailer fabrication, building heavy-duty workbenches, and assembling workshop machinery.
Technical Specifications
Our Grade 8 Hex Nuts conform to the DIN 934 standard for dimensional accuracy. Please refer to the table below for detailed measurements corresponding to each thread size.
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Thread Size (d)
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Pitch (mm)
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Spanner Size (s)
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Height (m)
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Standard
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M2.5
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0.45
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5 mm
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2 mm
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DIN 934
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M3
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0.5
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5.5 mm
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2.4 mm
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DIN 934
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M4
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0.7
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7 mm
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3.2 mm
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DIN 934
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M5
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0.8
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8 mm
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4 mm
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DIN 934
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M6
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1.0
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10 mm
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5 mm
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DIN 934
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M8
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1.25
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13 mm
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6.5 mm
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DIN 934
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M10
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1.5
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17 mm
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8 mm
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DIN 934
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M12
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1.75
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19 mm
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10 mm
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DIN 934
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M14
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2.0
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22 mm
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11 mm
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DIN 934
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M16
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2.0
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24 mm
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13 mm
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DIN 934
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M18
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2.5
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27 mm
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15 mm
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DIN 934
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M20
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2.5
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30 mm
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16 mm
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DIN 934
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M22
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2.5
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32 mm
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18 mm
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DIN 934
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M24
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3.0
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36 mm
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19 mm
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DIN 934
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M27
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3.0
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41 mm
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22 mm
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DIN 934
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M30
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3.5
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46 mm
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24 mm
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DIN 934
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M33
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3.5
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50 mm
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26 mm
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DIN 934
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M36
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4.0
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55 mm
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29 mm
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DIN 934
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Material: Heat-Treated Medium Carbon Alloy Steel
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Strength Grade: Property Class 8
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Finish: Bright Zinc Plated (BZP), CR3
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Thread: Metric Coarse, Right-Hand
Usage & Installation Guidance
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System Integrity: For optimal performance and safety, the grade of the nut must be the same or higher than the grade of the bolt. Always pair Grade 8 nuts with bolts of an equal or higher strength grade, such as Grade 8.8 or 10.9 bolts.25 Using a lower-grade bolt will compromise the strength of the entire joint.
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Proper Torque: Ensure the correct torque specifications are applied during installation using a calibrated torque wrench. This achieves the required clamping force and prevents thread stripping or fastener failure.
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Component Matching: For best results, use with corresponding flat washers (to distribute load) and spring or locking washers (to provide additional resistance to vibration).
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