DIN 439 Hex Thin Nut Manufacturer for Low-Profile Locking Applications
|
Size (d) |
Across Flats (AF, mm) |
Pitch (mm) |
Thickness (m, mm) |
|
M3 |
5.5 |
0.5 |
2.4 |
|
M4 |
7 |
0.7 |
3.2 |
|
M5 |
8 |
0.8 |
3.2 |
|
M6 |
10 |
1.0 |
3.6 |
|
M8 |
13 |
1.25 |
4 |
|
M10 |
17 |
1.5 |
5 |
|
M12 |
19 |
1.75 |
6 |
|
M16 |
24 |
2.0 |
8 |
|
M20 |
30 |
2.5 |
10 |
|
M24 |
36 |
3.0 |
12 |
A DIN 439 hex thin nut is a low-profile hexagonal fastener designed for applications where limited installation height, reduced weight, or double-nut locking is required. Compared with standard DIN 934 hex nuts, the thinner body makes it ideal for compact machinery assemblies and jam nut locking systems.
Common Alternative Names
Thin Hex Nut
Low Profile Hex Nut
Jam Nut
DIN 439 Nut
Locking Thin Nut
Features of DIN 439 Thin Nut
● Low-profile design for compact assemblies
● Hexagonal shape for easy tightening with standard wrenches
● Can be used as a jam nut in combination with a standard hex nut to prevent loosening
● Available in various materials and coatings for corrosion resistance
● Manufactured according to DIN 439 standard
Strength Class & Materials
● Strength classes: 4, 5, 8, 10 (for steel)
● Materials: Carbon steel, stainless steel (A2, A4), brass
● Surface treatment: Zinc-plated, hot-dip galvanized, black oxide
Main Applications
machinery assembly
automotive fastening
steel structure systems
lock nut double-nut applications
threaded rod assemblies
electrical cabinets
compact industrial equipment
DIN 439 vs DIN 934 Hex Nut
| Feature | DIN 439 Thin Nut | DIN 934 Standard Nut |
|---|---|---|
| height | low profile | standard |
| use | locking / compact space | general fastening |
| weight | lighter | standard |
| application | jam nut / double nut | normal bolt assembly |
Standard Sizes
M3, M4, M5, M6, M8, M10, M12, M16, M20, M24
OEM drawing customization available.
Why Choose DCS Screws?
Factory Direct & Cost-Effective
Direct manufacturing from Hebei (China's fastener hub) ensures the most competitive pricing without compromising quality.
Quality You Can Verify
Fully compliant with DIN, ISO, and ANSI standards. We provide Mill Test Certificates (MTC) and third-party inspection reports.
Custom & Standard Solutions
Specializing in Round Coupling Nuts (M6-M36). Flexible OEM service for special threads or materials (SS304/316).
Fast Delivery & Samples
Stock available for standard sizes. Free samples shipped within 48 hours to help you evaluate our quality immediately.
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