DIN439 Hexagon Thin Nut Specifications
Parameter | Details |
Product Name | DIN439 Hexagon Thin Nut, Jam Nut, Low Profile Half Nut |
Standard | DIN439-1 / DIN439-2 (ISO4035) |
Structure | Low-profile Thin Height, Chamfered Hexagon, Flat End Face, Metric Thread |
Grade | Carbon Steel: Class 4/8; Stainless Steel: A2-70, A4-80 |
Surface Finish | Black Oxide, Zinc Plated, Hot Dip Galvanized, Stainless Steel Passivation |
Thread Class | 6H Precision Metric Coarse & Fine Thread |
Size Range | M1.6-M52 Full Sizes In Stock, Custom Fine Thread Available |
Core Function | Secondary Locking, Vibration Anti-loosening, Spacing Limiting, Space-saving Assembly |
Application | Mechanical Equipment, Hydraulic Components, Sheet Metal Cabinet, Steel Structure, Precision Instrument |
Inspection | Dimensional Inspection, Thread Gauge Test, Verticality & Appearance Full Inspection |
Package | Neutral Bag + Export Carton & Pallet, OEM Custom Packaging |
Lead Time | 3-7 Days for Stock Sizes, 15-20 Days for Custom Products |
Product Core Advantages
Low-profile Space-saving Design
DIN439 thin nuts feature ultra-low height structure, solving the assembly limitation of narrow installation space. It effectively reduces overall assembly thickness and avoids structural interference, perfectly suitable for compact mechanical and hydraulic equipment layout.
Matched with standard thick nuts for double locking assembly, it eliminates thread gaps and provides excellent vibration resistance. It maintains stable fastening performance for long-term vibrating equipment, far more reliable than ordinary spring washer anti-loosening methods.
High Precision & Strong Interchangeability
Manufactured strictly according to DIN439 standard with 6H precision thread and qualified verticality. It can directly replace imported thin nuts with high universality, suitable for global metric equipment maintenance and batch supporting.
Multi-grade & Multi-scenario Adaptation
Multiple materials and surface treatments cover indoor general assembly, outdoor weather-resistant engineering and corrosive environment equipment, meeting diverse industrial fastening and limiting demands.
Grade Selection Guide
Class 4 Black Oxide Carbon Steel Nut (Economical Type)
Cost-effective conventional grade with black anti-rust treatment, suitable for indoor general machinery, tooling and daily equipment limiting and locking.
Class 8 Zinc Plated Carbon Steel Nut (High-strength Anti-rust Type)
High mechanical strength with electro-galvanized finish, improving moisture and rust resistance. Ideal for medium-load automated equipment and vibrating mechanical locking scenarios.
Hot Dip Galvanized Nut (Outdoor Weather-resistant Type)
Thick galvanized layer provides excellent outdoor weather resistance, anti-oxidation and anti-corrosion performance, specially used for steel structures, construction machinery and outdoor equipment supporting.
304/316 Stainless Steel Nut (Corrosion-resistant Type)
Premium stainless steel material with superior salt spray, acid and moisture resistance, adapting to chemical, coastal and humid workshop harsh working environments.
DIN439 vs DIN934 Difference
DIN439 Thin Nut: Low-profile thin structure, mainly used for auxiliary locking, spacing limiting and space-limited assembly. Suitable for double-nut anti-loosening and fine adjustment, not for single main load-bearing connection.
DIN934 Standard Thick Nut: Standard height with large bearing area and strong load capacity. Designed for main force fastening, not applicable for compact space and fine adjustment scenarios.
Production Process
High-quality Raw Material Selection: Adopt qualified carbon steel and stainless steel raw materials to ensure stable mechanical properties.
Automatic Cold Heading Forming: Integrated forming with dense structure and no defects to ensure overall toughness and stability.
Precision Thread Rolling: Standard 6H thread with full gauge inspection to ensure smooth assembly and tight meshing.
Flat End Finishing: Double-end precision grinding ensures flatness and uniform locking force.
Custom Anti-corrosion Treatment: Multiple surface processes for different environmental protection requirements.
Strict Batch Quality Inspection: Dimensional and appearance sampling inspection to guarantee stable batch quality.
Application Industries
General Machinery: Auxiliary locking and limit adjustment for machine tools and automation equipment.
Hydraulic & Pneumatic Industry: Compact assembly and anti-loosening for hydraulic valve groups and cylinder components.
Sheet Metal & Cabinet Industry: Space-saving locking for chassis and cabinet equipment.
Construction Machinery: Vibration resistance and anti-loosening for heavy-duty vibrating equipment.
Steel Structure Engineering: Outdoor bracket limiting and auxiliary fastening.
Precision Instruments: Low-height matching assembly for miniature precision equipment.
Why Choose Our DIN439 Nuts
We specialize in the mass production of German-standard thin nuts, providing full-series DIN439 hexagon thin nuts. Covering class 4/8 carbon steel, hot-dip galvanized and 304/316 stainless steel grades, all products comply strictly with DIN439 standards with accurate size and stable auxiliary anti-loosening performance. Widely applicable for space-limited assembly and double-nut locking scenarios, our products are well-received by global buyers for reliable quality and sufficient stock. Custom processing supports one-stop industrial fastening solutions.
For high-precision DIN439 thin hex nuts, auxiliary anti-loosening nuts and stainless steel thin nuts, please feel free to contact us for professional technical support and exact quotation.
