M3 Metric Grade 8 Hex Full Nuts – Bright Zinc Plated (DIN 934)

High strength Grade 8 hex nuts with bright zinc plating for secure fastening in machinery, construction and DIY projects.

Key Benefits & Features

• DIN 934 compliant: Made to the DIN 934 specification for standard hex nuts.
• Grade 8 steel: High strength Class 8 steel provides strong tensile performance for demanding applications.
• Bright zinc plated (BZP): Cr+3 zinc coating offers corrosion resistance and durability.
• Hexagon shape: Easy to grip and torque using standard spanners or sockets; coarse metric threads for reliable engagement.
• Range of sizes: Available in metric sizes M3–M18 to suit small hardware and large structural bolts.
• Machine screw compatibility: Works with machine screws and bolts; thread tolerance 6H.

Use Cases

• Machinery and equipment assembly
• Automotive repairs and maintenance
• Building and construction fixings
• Furniture and cabinetry installation
• DIY and workshop projects

Compatibility / Fittings

• Match the nut to the same metric bolt diameter and thread pitch.
• Suitable for use with washers (Form A, C or spring) to distribute load or prevent loosening.
• Grade 8 nuts should be paired with bolts of equal or lower property class.
• Compatible with machine screws and threaded rod in general fixing applications.

Installation & Tips

• Select the correct spanner size for each nut to avoid rounding.
• Ensure threads are clean and free of debris before assembly.
• Hand start nuts to prevent cross threading, then tighten with a torque wrench to the bolt’s specified torque.
• Use a threadlocker or lock washer for added resistance to vibration where necessary.
• For outdoor or corrosive environments, consider stainless steel alternatives.