Bulk discount available
Subtotal (1 bag of 100 units)*
£6.53
(exc. VAT)
£7.84
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 326 unit(s) ready to ship
- Plus 83 unit(s) ready to ship from another location
- Plus 251 unit(s) shipping from 05 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Bag(s) | Per Bag | Per unit* |
|---|---|---|
| 1 - 4 | £6.53 | £0.065 |
| 5 - 9 | £6.19 | £0.062 |
| 10 - 29 | £5.87 | £0.059 |
| 30 + | £5.49 | £0.055 |
*price indicative
- RS Stock No.:
- 248-4567
- 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 | M2.5 | |
| Material | Stainless Steel | |
| Type | Full | |
| Stainless Steel Type | A4 316 | |
| Finish | Plain | |
| Width | 5.0mm | |
| Standards Met | DIN 934 | |
Select all | ||
|---|---|---|
Brand RS PRO | ||
Imperial or Metric Metric | ||
Nut Type Hex | ||
Thread Size M2.5 | ||
Material Stainless Steel | ||
Type Full | ||
Stainless Steel Type A4 316 | ||
Finish Plain | ||
Width 5.0mm | ||
Standards Met DIN 934 | ||
RS PRO A4 Stainless Steel Hex Nuts - Metric
RS PRO A4 stainless steel hex nuts ideal for use in chemical processing equipment and marine environments due to its higher resistance to tarnish and corrosion. These 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:
Metric hex nuts
To DIN934
A4 grade 18/8 stainless steel (Type 316 S16) – long lasting
Good resistance to corrosion and saltwater
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:
• 248-4551 – M2
• 248-4567 – M2.5
• 189-563 – M3
• 189-579 – M4
• 189-585 – M5
• 189-591 – M6
• 189-608 – M8
• 189-614 – M10
• 183-9045 – M12
• 248-4573 – M16
• 248-4589 – M20
Typical Applications:
Chemical processing equipment
Marine Environments
Automotive Applications
Construction Industry
General Industry
Machinery
Workshops
Standards
DIN 934
What is A2 Stainless Steel?
Stainless steel comes in many grades, the most popular being, A4 or 316 and A2 or 304. These two grades both offer excellent corrosion resistance, easy to clean and good resistance to extremely low and high temperatures. The difference between A2 and A4 is that A4 stainless steel has molybdenum added to it to help resist corrosion to chlorides such as sea water and de-icing salts making it better suited to extreme environments and exposure to chemical solutions. Stainless steel nuts, fasteners, screws and bolts are often manufactured from A4 or A2 stainless steel as the metal offers strong abrasion resistance, good resistance to corrosion and reliable low levels of distortion.
Features and Benefits:
Metric hex nuts
To DIN934
A4 grade 18/8 stainless steel (Type 316 S16) – long lasting
Good resistance to corrosion and saltwater
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:
• 248-4551 – M2
• 248-4567 – M2.5
• 189-563 – M3
• 189-579 – M4
• 189-585 – M5
• 189-591 – M6
• 189-608 – M8
• 189-614 – M10
• 183-9045 – M12
• 248-4573 – M16
• 248-4589 – M20
Typical Applications:
Chemical processing equipment
Marine Environments
Automotive Applications
Construction Industry
General Industry
Machinery
Workshops
Standards
DIN 934
What is A2 Stainless Steel?
Stainless steel comes in many grades, the most popular being, A4 or 316 and A2 or 304. These two grades both offer excellent corrosion resistance, easy to clean and good resistance to extremely low and high temperatures. The difference between A2 and A4 is that A4 stainless steel has molybdenum added to it to help resist corrosion to chlorides such as sea water and de-icing salts making it better suited to extreme environments and exposure to chemical solutions. Stainless steel nuts, fasteners, screws and bolts are often manufactured from A4 or A2 stainless steel as the metal offers strong abrasion resistance, good resistance to corrosion and reliable low levels of distortion.
Note
Please note IMDS is not a regulatory requirement and is currently not supported by RS PRO