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
"螺纹规格" is translated as "Thread Size" (industry-standard term for fastener thread specifications, avoiding ambiguity with "Thread Specification").
"性能等级" uses "Property Classes"—the official term in ISO/DIN fastener standards, distinguishing it from "Strength Classes" (more commonly used for bolts).
"产品等级" 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).
"对边宽度" (a critical dimension of hexagon nuts) is translated as "Width across flats"—the universal engineering term for the distance between two opposite hexagon faces.
