HT Nut (Pakka Nut)

Ensure the structural integrity of your assemblies with our premium High Tensile (HT) Hex Nuts. Specifically engineered for high-stress environments, these nuts are designed to provide maximum clamping force and resistance to thread stripping, making them the industry standard for heavy-duty fastening.

Key Features

• Industrial Strength: Forged from high-grade alloy steel and heat-treated to match the strength requirements of Grade 8.8 and 10.9

• Heavy-Duty Profile: Featuring a standard “full height” design to ensure maximum thread engagement and prevent “nut stripping” under high torque.

• Black Oxide Protection: Finished with a professional blackodized coating that offers essential corrosion resistance and an anti-galling surface for smoother installation.

• Precision Threading: Machined to strict tolerances (Class 6H/2G) for a perfect, play-free fit with standard metric and imperial high-tensile bolts.

Technical Specifications

Feature	Details
Material	Heat-Treated High Tensile Alloy Steel
Finish	Black Oxide / Oil-Dipped Black
Hardness	Typically 24–35 HRC (depending on grade)
Standard	DIN 934 / ISO 4032 / ASME B18.2.2
Compatibility	Pairs perfectly with HT Plain Washers and HT Spring Washers

Common Applications

• Heavy Machinery: Assembly of earthmoving equipment and industrial presses.

• Structural Engineering: Used in steel framework and bridge construction.

• Automotive & Racing: Critical engine mounts, suspension linkages, and chassis assembly.

• Manufacturing: Securing high-vibration power tools and production line components.

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Available Sizes: We offer a full inventory of sizes ranging from M4 to M30 in standard and fine pitch threads to suit any industrial application.