China hexagonal knurled head screw Manufacturer, Supplier, Factory

Discover the superior performance and reliability of Hexagon socket head cap screws-Knurled head, engineered to meet demanding industrial applications. These specialized screws combine the convenience of a hex socket drive with the enhanced grip of a knurled head, offering secure fastening in high-vibration environments. Like standard Hexagon socket head cap screws, our knurled head variants are precision-machined for consistent quality and compatibility with automated assembly systems.


The hexagonal knurled head screw is manufactured to exact specifications, ensuring durability and ease of use. Its knurled head provides excellent finger grip for manual adjustments, while the hex socket allows for high-torque applications with standard Allen keys. This dual functionality makes the hexagonal knurled head screw ideal for applications where both tool-driven and hand-tightened operations are required. Below are the detailed product parameters, presented in a clear and professional format.

Key Features

  • Hex Socket Drive for High Torque Application
  • Knurled Head for Enhanced Grip and Manual Adjustments
  • Precision Machined from High-Strength Materials
  • Corrosion-Resistant Finishes Available
  • Compliant with International Standards (e.g., ISO, DIN)

Product Specifications

Parameter Description
Material Stainless Steel (A2/A4), Alloy Steel, Carbon Steel
Head Style Knurled Hexagon Socket Head
Drive Type Hex Socket (Internal)
Thread Type Metric (M3 to M20), UNC, UNF
Finish Zinc Plated, Black Oxide, Passivated, Plain
Strength Grade Stainless Steel: A2-70, A4-80; Alloy Steel: 8.8, 10.9, 12.9
Standards ISO 4762, DIN 7984, ASME B18.3

Available Sizes

Thread Size Head Diameter (mm) Socket Size (mm) Length Range (mm)
M3 5.5 2.5 5 - 30
M4 7.0 3.0 6 - 40
M5 8.5 4.0 8 - 50
M6 10.0 5.0 10 - 60
M8 13.0 6.0 12 - 80
M10 16.0 8.0 15 - 100

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