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Nut DIN439

Hexagon thin nut DIN439

Hexagon thin nut DIN439
  • Product description：Zhuhai Jiali Hardware supplies high quality nut din439 (DIN439) with complete specifications, multiple materials and custom manufacturing. Fast delivery and competitive price.

Hexagon thin nut DIN439

Material: stainless steel 304316, grade 8.8 high strength and grade 12.9 high strength

Product standard:DIN439

It can also support non-standard customization.


1. Thread Size

Range: M1.6～M64. It covers a variety of sizes from small to large diameters, meeting the needs of different application scenarios.

2. Property Classes

Including classes 14H, 04, 05, A2-035, A2-025, A4-035, A4-025, CU2, CU3, and AL4.
  • 14H: Represents a high-precision thread class.
  • 04, 05: Carbon steel property classes.
  • A2/A4 series (e.g., A2-035, A2-025): Stainless steel property classes.
  • CU series (e.g., CU2, CU3): Copper alloy property classes.
  • AL4: Aluminum alloy property class.

3. Product Grades

Divided into Grade A and Grade B:
  • Grade A: Applicable to nuts with a nominal thread diameter \(D ≤ 16mm\).
  • Grade B: Applicable to nuts with a nominal thread diameter \(D ＞ 16mm\).

4. Appearance and Dimensions

  • Shape: Hexagonal (six-sided), with a relatively thin thickness—this makes it well-suited for applications where space is limited.
  • Specific dimensional parameters (e.g., width across flats, thickness): Determined in accordance with the provisions of the DIN 439 standard. Different thread sizes correspond to different specific dimensions.

Key Notes on Technical Terminology

  • "螺紋規(guī)格" is translated as "Thread Size" (industry-standard term for fastener thread specifications, avoiding ambiguity with "Thread Specification").
  • "性能等級" uses "Property Classes"—the official term in ISO/DIN fastener standards, distinguishing it from "Strength Classes" (more commonly used for bolts).
  • "產(chǎn)品等級" is rendered as "Product Grades" to align with DIN 439’s classification of dimensional accuracy (Grade A for higher precision, Grade B for general precision).
  • "對邊寬度" (a critical dimension of hexagon nuts) is translated as "Width across flats"—the universal engineering term for the distance between two opposite hexagon faces.