China High Pressure Hexagon Nuts Manufacturer, Supplier, Factory

High pressure hexagon nuts are engineered to deliver exceptional performance in demanding applications where reliability and durability are critical. These nuts are manufactured to withstand extreme pressure and harsh environments, ensuring secure fastening in industrial machinery, heavy equipment, and critical infrastructure projects. For specialized requirements, our product line includes options such as Hexagon Extra Flat Nuts With Fine Pitch Thread, which provide a low profile and precise thread engagement for space-constrained assemblies. In applications requiring enhanced load distribution and surface protection, the Inch Hexagon Thick Nuts With Washer Faced offer a robust solution with an integrated washer face to prevent loosening under vibration. For high-pressure systems like vessels and pipelines, the Hexagon Nut For Pressure Vessel Flange is specifically designed to maintain seal integrity and resist deformation under sustained loads. Each variant is crafted from premium materials and undergoes rigorous testing to meet international standards, providing peace of mind for engineers and procurement specialists.


The High Pressure Hexagon Nuts feature precise dimensions and material properties tailored for high-stress environments. Below is a detailed overview of their key parameters, presented in both list and table formats for clarity. These nuts are typically made from alloy steel or stainless steel, with options for various coatings like zinc plating or hot-dip galvanizing to enhance corrosion resistance. The thread specifications adhere to ISO, DIN, or ANSI standards, ensuring compatibility with a wide range of bolts and studs. Critical parameters include proof load, tensile strength, and hardness, which are optimized to prevent failure under cyclic loading or temperature fluctuations. For instance, the nuts are designed with a chamfered end to facilitate easy assembly and reduce stress concentration. Additionally, they are available in multiple sizes and grades, such as Grade 8 or 10, to suit different pressure ratings and application needs. The following table summarizes the standard specifications for common sizes of High Pressure Hexagon Nuts.

  • Material: Alloy Steel, Stainless Steel (AISI 304/316)
  • Standards: ISO 4032, DIN 934, ANSI B18.2.2
  • Thread Types: Metric (fine and coarse), UNC, UNF
  • Coatings: Zinc, Hot-Dip Galvanized, Dacromet
  • Proof Load: Up to 120,000 psi depending on grade
  • Tensile Strength: Minimum 150,000 psi for high-grade variants
  • Hardness: Rockwell C scale 22-34
  • Temperature Range: -50°C to +300°C (standard), higher on request
  • Sizes: M6 to M64, 1/4" to 2-1/2"
Size (Metric) Width Across Flats (mm) Height (mm) Thread Pitch Proof Load (kN)
M10 17 8 1.5 mm 40
M16 24 13 2.0 mm 95
M24 36 19 3.0 mm 210
M36 55 28 4.0 mm 480
Size (Inch) Width Across Flats (in) Height (in) Threads Per Inch Proof Load (lbs)
1/2" 0.75 0.45 13 7,200
3/4" 1.125 0.65 10 16,500
1" 1.50 0.87 8 28,000
1-1/2" 2.25 1.30 6 62,000

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