M4 (5mm) x 20mm Socket Shoulder Screw (ISO 7379) | A2 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 9 | £20.39 | £24.47 |
| 10 - 24 | £15.29 | £18.35 |
| 25 - 49 | £14.02 | £16.82 |
| 50 - 99 | £12.74 | £15.29 |
| 100 - 499 | £10.19 | £12.23 |
| 500 + | £8.92 | £10.70 |
Product Specification
| Shoulder Diameter | 5.0mm |
| Shoulder Length | 20.0mm |
| Thread Size | M4 |
| Material | A2 Stainless Steel |
| Thread Length | 8.0mm |
| Head Diameter | 8.5mm |
| Head Height | 4.0mm |
| Drive | H2.5 |
| Standard | ISO 7379 |
| Shoulder Tolerance | f9 |
Frequently Bought Together
Total Price: £0.00
M4 (5mm) x 20mm Socket Shoulder Screw (ISO 7379) | A2 Stainless Steel
Used in assemblies that need controlled spacing, this M4 (5mm) x 20mm Socket Shoulder Screw provides a measured shoulder length of 20mm and a 8.5mm head diameter. It suits engineering shoulder bolt requirements where the shoulder size matters as much as the thread.
Made from A2 stainless steel, it provides a neat finish for visible assemblies, service panels and engineering equipment. The controlled shank size makes the fastener suitable for repeatable mechanical movement, guided location and low play assemblies.
ISO 7379 f9 Shoulder Tolerance Guide
| Nominal Diameter (ds in mm) | Lower Deviation (ES/EI) in μm | Upper Deviation (es/ei) in μm | Example Min. Diameter (mm) | Example Max. Diameter (mm) |
|---|---|---|---|---|
| 4 | -25 | -50 | 3.975 | 3.950 |
| 5 | -30 | -60 | 4.970 | 4.940 |
| 6 | -30 | -60 | 5.970 | 5.940 |
| 8 | -36 | -72 | 7.964 | 7.928 |
| 10 | -36 | -72 | 9.964 | 9.928 |
| 12 | -43 | -86 | 11.957 | 11.914 |
| 16 | -43 | -86 | 15.957 | 15.914 |
| 20 | -52 | -104 | 19.948 | 19.896 |
| 24 | -52 | -104 | 23.948 | 23.896 |
Note: The values in the table are a standard representation. The term "Lower Deviation" refers to the difference between the maximum material limit and the nominal size, while the "Upper Deviation" refers to the difference between the minimum material limit and the nominal size.
Common Applications
- Marine equipment interiors
- Corrosion conscious hardware
- Deck fitting mechanisms
- Compact pivot assemblies
M4 (5mm) x 20mm Socket Shoulder Screw Dimensions
- Shoulder Diameter: 5mm
- Shoulder Length: 20mm
- Thread Size: M4
- Thread Length: 8mm
- Head Diameter: 8.5mm
- Head Height: 4mm
- Drive: H2.5
- Shoulder Tolerance: f9
- Standard: ISO 7379
- Material: A2 Stainless Steel
Browse Related Fastener Ranges
View our full Socket Shoulder Bolts ISO 7379 range. You can also browse our wider Shoulder Bolts category and Bolts and Screws collection.
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