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China small hexagon nut Manufacturer, Supplier, Factory

The hexagon nut is an indispensable component in countless mechanical assemblies, and our small hex nut is engineered for precision applications where space is limited and reliability is non-negotiable. For tasks demanding a compact yet robust fastener, our small hex nut delivers exceptional performance. This specific hex nut is manufactured to the highest standards, ensuring consistent thread engagement and secure fastening. For engineers requiring a specific finish, our Type 2 Single chamfered small hexagon nut offers a single chamfered top surface, facilitating easier thread start and reducing the risk of cross-threading during installation, making it a superior choice for automated assembly lines and delicate equipment.


The small hexagon nut is defined by its critical technical parameters, which are detailed below to ensure you select the perfect component for your project. The product is available in a variety of materials, finishes, and performance grades to meet diverse industrial demands.

Material and Finish Options

  • Materials: Carbon Steel, Stainless Steel (A2/A4), Brass, Alloy Steel
  • Finishes: Plain, Zinc Plated, Hot-Dip Galvanized, Geomet Coating, Dichromate
  • Performance Grades: Grade 4, Grade 5, Grade 8, Grade 10, A2-70, A4-80

Detailed Product Specifications

Nominal Size (inches) Width Across Flats (inches) Width Across Corners (inches) Height (inches) Thread Pitch
#0 0.125 0.144 0.047 UNF 0-80
#2 0.188 0.217 0.064 UNC 2-56
#4 0.250 0.289 0.086 UNC 4-40
#6 0.312 0.361 0.104 UNC 6-32
#8 0.375 0.433 0.120 UNC 8-32
#10 0.438 0.505 0.135 UNC 10-24
1/4" 0.438 0.505 0.212 UNC 1/4-20

Key Mechanical Properties

Property Grade Proof Load (psi) Minimum Tensile Strength (psi) Hardness (Rockwell)
Grade 5 85,000 120,000 HRC C25 - C34
Grade 8 120,000 150,000 HRC C33 - C39
A2-70 (Stainless) 70,000 100,000 HRB 70 - 85

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