RS PRO, Plain Stainless Steel Hex Nut, DIN 439, M6
- RS Stock No.:
- 122-4403
- Distrelec Article No.:
- 304-16-909
- Brand:
- RS PRO
Bulk discount available
Subtotal (1 bag of 100 units)*
£4.10
(exc. VAT)
£4.92
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 32 unit(s) ready to ship
- Plus 81 unit(s) ready to ship from another location
- Plus 60 unit(s) shipping from 26 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Bag(s) | Per Bag | Per unit* |
|---|---|---|
| 1 - 4 | £4.10 | £0.041 |
| 5 - 9 | £3.89 | £0.039 |
| 10 - 29 | £3.68 | £0.037 |
| 30 + | £3.43 | £0.034 |
*price indicative
- RS Stock No.:
- 122-4403
- Distrelec Article No.:
- 304-16-909
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Imperial or Metric | Metric | |
| Nut Type | Hex | |
| Thread Size | M6 | |
| Material | Stainless Steel | |
| Type | Half | |
| Stainless Steel Type | A2 304 | |
| Finish | Plain | |
| Width | 10.0mm | |
| Standards Met | DIN 439 | |
Select all | ||
|---|---|---|
Brand RS PRO | ||
Imperial or Metric Metric | ||
Nut Type Hex | ||
Thread Size M6 | ||
Material Stainless Steel | ||
Type Half | ||
Stainless Steel Type A2 304 | ||
Finish Plain | ||
Width 10.0mm | ||
Standards Met DIN 439 | ||
RS PRO Hex Nuts - A2 Stainless Steel Locking Half Nut
The RS PRO A2 stainless steel locking half nuts have been designed for you to use when a nut has to be locked without clamping against another object.
Hex nuts are the most common hexagonal fastener that has internal threads that screw on to the shank of a bolt or a hex cap screw.
Hex nuts are the most common hexagonal fastener that has internal threads that screw on to the shank of a bolt or a hex cap screw.
Features and Benefits:
Good resistance to corrosion
Value for money
Half the height of normal nuts
Due to the hexagon nut having six sides it makes it easier to work with and is very versatile
Easy to tighten and loosen
Accessible from 360 degrees due to their shape
These RS PRO hex nut fasteners come in various thread sizes:
122-4399 – M2.5
122-4400 – M3
122-4401 – M4
122-4402 – M5
122-4403 – M6
122-4404 – M8
122-4405 – M10
122-4406 – M12
122-4407 – M16
122-4408 – M20
Value for money
Half the height of normal nuts
Due to the hexagon nut having six sides it makes it easier to work with and is very versatile
Easy to tighten and loosen
Accessible from 360 degrees due to their shape
These RS PRO hex nut fasteners come in various thread sizes:
122-4399 – M2.5
122-4400 – M3
122-4401 – M4
122-4402 – M5
122-4403 – M6
122-4404 – M8
122-4405 – M10
122-4406 – M12
122-4407 – M16
122-4408 – M20
Typical Applications:
Use as locking nut
Use in manufacturing sectors such as the food industry
Automotive Applications
Construction Industry
General Industry
Machinery
Workshops
DIY enthusiasts
Home
What is A2 Stainless Steel?
Stainless steel comes in many grades, the most popular being, A2 stainless steel which is a corrosion resistant steel also known as 304. The other common grade of stainless steel is A4 or 316. A2 stainless steel is often used in the food and catering industries. Stainless steel nuts, fasteners, screws and bolts are often manufactured from A2 stainless steel as the metal offers strong abrasion resistance, good resistance to corrosion and reliable low levels of distortion.
Use in manufacturing sectors such as the food industry
Automotive Applications
Construction Industry
General Industry
Machinery
Workshops
DIY enthusiasts
Home
What is A2 Stainless Steel?
Stainless steel comes in many grades, the most popular being, A2 stainless steel which is a corrosion resistant steel also known as 304. The other common grade of stainless steel is A4 or 316. A2 stainless steel is often used in the food and catering industries. Stainless steel nuts, fasteners, screws and bolts are often manufactured from A2 stainless steel as the metal offers strong abrasion resistance, good resistance to corrosion and reliable low levels of distortion.
Note
If A2 stainless steel is not what you are looking for, we also have the locking half nut in A4 stainless steel.
Standards
DIN 439 – Hexagon thin nuts
Note
Please note IMDS is not a regulatory requirement and is currently not supported by RS PRO