China Hand Screw The Nut Manufacturer, Supplier, Factory

In the realm of mechanical fastening, the hand screw nut is a fundamental component, often used in conjunction with other specialized fasteners to ensure robust and secure assemblies. For applications requiring standard hexagonal profiles, the Hexagon Nut is a common choice, offering ease of installation with standard wrenches. In situations where a larger bearing surface is needed to distribute load and prevent pull-through, the Hexagon Flange Nut integrates a washer-like flange, eliminating the need for a separate washer. Where space is constrained or a different aesthetic is desired, the Square Nut provides stability, particularly in wood or castings. Most critically, for applications subject to vibration or dynamic loads, a Lock Nut is essential, as it is designed to resist loosening under stress, ensuring the long-term integrity of the connection.


The <产品名字> is engineered for manual tightening applications where power tools are impractical or where precise torque control is required by hand. It is characterized by its durable construction and user-friendly design, allowing for efficient assembly and disassembly. Below are the key specifications and material options for the <产品名字>.

Key Specifications

  • Thread Sizes: Available in a comprehensive range from M3 to M24 and imperial equivalents.
  • Standards: Manufactured to meet ISO, DIN, ANSI, and ASME standards for global compatibility.
  • Drive Types: Compatible with standard hand wrenches, socket sets, and spanners.
  • Finish: Offered in plain, zinc-plated, hot-dip galvanized, and stainless steel finishes for corrosion resistance.

Material Grades and Properties

Material Grade Core Material Tensile Strength (Min) Proof Load (MPa) Common Applications
Grade 4.8 / Class 4.8 Low Carbon Steel 420 MPa 340 MPa General purpose, low-stress applications
Grade 8.8 / Class 8.8 Medium Carbon Steel 830 MPa 580 MPa Automotive, machinery, high-stress environments
Grade 10.9 / Class 10.9 Alloy Steel 1040 MPa 830 MPa Heavy machinery, structural applications
Grade 12.9 / Class 12.9 Alloy Steel 1220 MPa 970 MPa High-performance automotive, aerospace
A2 / 304 Stainless Stainless Steel 500 MPa 210 MPa Marine, food processing, chemical environments
A4 / 316 Stainless Stainless Steel 500 MPa 210 MPa High-corrosion resistance, offshore applications

Dimensional Data (Sample Metric Sizes)

Nominal Size (M) Width Across Flats (mm) Width Across Corners (mm) Thickness (mm) Thread Pitch (mm)
M6 10.00 11.55 5.00 1.00
M8 13.00 15.01 6.50 1.25
M10 16.00 18.48 8.00 1.50
M12 18.00 20.78 10.00 1.75
M16 24.00 27.71 13.00 2.00
M20 30.00 34.64 16.00 2.50

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