Space-Saving Structure
The compact profile allows fastening in narrow areas where standard nuts cannot be installed.
DIN 439 Hexagon Thin Nuts
- Standard: DIN 439(Chamfered Hexagon Thin Nut)
- Material: Stainless Steel
- Thread Size: M1-M160
- Surface Treatment: Plain, Zinc Plated
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
DIN 439 Hexagon Thin Nut, also known as a thin nut, jam nut, or half nut, is a low-profile hexagonal nut designed for applications where installation space is limited. Compared with standard hex nuts, DIN 439 has a reduced height while maintaining reliable thread engagement and clamping performance.
It is commonly used as a locking nut combined with a standard nut, where two nuts are tightened together to prevent loosening caused by vibration. DIN 439 thin nuts are widely applied in machinery, automotive components, precision equipment, and general industrial assemblies.
The original DIN 439 standard has been withdrawn and replaced by international equivalents such as ISO 4035 / ISO 4036 series. However, DIN 439 remains widely recognized in global fastener markets.
Draw
Specification
DIN 439 vs Standard Hex Nut (DIN 934 / ISO 4032)
DIN 439 Thin Nut
- Reduced height design
- Used where space is restricted
- Commonly used as a lock nut
- Lower material consumption
DIN 934 / ISO 4032 Hex Nut
- Standard height design
- Provides higher thread engagement
- Used as the primary fastening nut
- Suitable for higher load applications
Typical Combination:
DIN 934 + DIN 439 = Double Nut Locking System
Product Advantages
Effective Anti-Loosening Solution
When paired with a standard nut, DIN 439 provides additional locking force against vibration loosening.
Cost-Efficient Fastening
Lower height reduces material usage while maintaining dependable fastening performance.
Common Questions
What is DIN 439 nut used for?
DIN 439 is a thin hexagon nut mainly used where installation space is limited or as a locking nut combined with another nut.
What is the difference between DIN 439 and DIN 934?
The main difference is height. DIN 439 is a low-profile thin nut, while DIN 934 is a standard height hex nut designed for primary fastening.
Can DIN439 screws be customized?
Yes. Custom materials, finishes, packaging, and special thread requirements are available.
Can DIN 439 be used alone?
Yes, but it is mainly designed for low-load applications or as a secondary locking nut. For high-strength fastening, a standard hex nut is normally preferred.
