M4 x 25mm Thin Knurled Thumb Screw (DIN 653) | A1 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £1.52 | £1.83 |
| 50 - 99 | £1.32 | £1.59 |
| 100 - 249 | £1.18 | £1.41 |
| 250 - 499 | £1.02 | £1.22 |
| 500 - 999 | £0.94 | £1.13 |
| 1000 + | £0.86 | £1.03 |
£1.83 / each
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Product Specification
| Thread Size | M4 |
| Thread Length | 25mm |
| Pitch | 0.70mm |
| Head Diameter | 16mm |
| Head Height | 3.5mm |
| Standard | DIN 653 |
| Material | A1 Stainless Steel |
Frequently Bought Together
Total Price: £0.00
M4 x 25mm Thin Knurled Thumb Screw (DIN 653) | A1 Stainless Steel
Developed for optical equipment and test rigs, this M4 x 25mm knurled machine thumb screw combines a 0.70mm metric thread with the low-profile head form associated with DIN 653. The knurled edge improves fingertip control during frequent assembly and the 25mm thread is suited to additional threaded reach through thicker components or spaced assemblies.
What Are Thin Knurled M4 Thumb Screws?
Thin thumb screws provide convenient tool-free fastening where speed and accessibility matter. Their flat knurled head is easier to grip than a plain machine screw yet remains lower in profile than high-type thumb screws used when greater hand leverage is required.
Common Applications
- Test Rigs: Fastens repositionable components during setup and calibration.
- Light Machinery: Provides hand-operated fixing for small guards and access plates.
- Control Enclosures: Secures removable panels that need routine operator or maintenance access.
- Optical Equipment: Provides tool-free fastening for adjustable mounts and compact assemblies.
M4 x 25mm Thin Knurled Thumb Screw Dimensions
- Thread Size: M4
- Thread Length: 25mm
- Pitch: 0.70mm
- Head Diameter: 16mm
- Head Height: 3.5mm
- Material: A1 Stainless Steel
- Standard: DIN 653
Key Benefits
- Knurled edge improves fingertip control during repeated tightening and loosening
- Thin 3.5mm head reduces projection in confined assemblies
- 0.70mm metric pitch matches the M4 specification (M4 thumb screws)
- DIN 653 dimensions simplify selection for standardised assemblies
Compare other lengths in the DIN 653 Thin Knurled Thumb Screw range and see the wider Knurled Fasteners selection for different head styles. For sizing or application support, speak with Vital Parts on 01233 713581.
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