M3 x 40mm Cap Head Captive Screw (H2.5) (~DIN 912) | A2 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £7.03 | £8.43 |
| 50 - 99 | £6.24 | £7.49 |
| 100 - 249 | £5.62 | £6.74 |
| 250 - 499 | £5.11 | £6.13 |
| 500 - 999 | £4.68 | £5.62 |
| 1000 + | £4.02 | £4.82 |
£8.43 / each
Product Specification
| Thread Size | M3 |
| Pitch | 0.50mm |
| Length | 40mm |
| Captive Diameter | 2.2mm |
| Threaded Length | 6.0mm |
| Drive | H2.5 |
| Head Diameter | 5.5mm |
| Head Height | 3.0mm |
| Material | A2 Stainless Steel |
| Standard | Similar to DIN 912 |
Frequently Bought Together
Total Price: £0.00
M3 x 40mm Captive Socket Cap Head Screw | Similar to DIN 912 | A2 Stainless Steel
Designed for laboratory equipment, instrumentation and technical enclosures, this M3 x 40mm captive socket cap head screw combines a socket cap head with a reduced captive section. Once installed with a suitable retaining feature, the screw can be loosened from its mating thread while remaining associated with the panel or component. A2 Stainless Steel provides good corrosion resistance for general engineering, machinery, equipment and indoor or suitably protected external applications.
What Are Captive Socket Cap Head Screws?
Socket Head Captive Screws provide positive hex-key drive engagement together with a retained fastening format. They are commonly specified for machinery, enclosures and serviceable equipment where panels need to be removed or opened regularly without losing the fasteners.
Common Applications
- Machinery Guards: Keeps compatible screws attached to removable guards during inspection, adjustment and maintenance.
- Control Cabinets: Retains panel fixings on electrical and automation enclosures that require repeated access.
- Equipment Covers: Supports serviceable covers where loose screws could be dropped inside machinery or misplaced.
- Maintenance Panels: Helps keep fastening hardware associated with access panels during routine servicing.
M3 x 40mm Captive Socket Cap Head Screw Dimensions
- Thread Size: M3
- Length: 40mm
- Threaded Length: 6.0mm
- Captive Diameter: 2.2mm
- Head Diameter: 5.5mm
- Head Height: 3.0mm
- Drive: H2.5
- Pitch: 0.50mm
- Standard: Similar to DIN 912
- Material: A2 Stainless Steel
Key Benefits
- H2.5 hex socket drive provides positive engagement with a matching driver or key.
- Similar to DIN 912 describes the DIN 912-style dimensional format used for this captive screw.
- M3 thread size with 40mm overall length provides the primary screw dimensions.
- 2.2mm captive diameter provides the reduced section used with a compatible retention feature.
Browse the complete Cap Head Captive Screw collection for alternative dimensions and materials. If a cap head is not the right profile, see our full Captive Screws range where we also stock countersunk captive screw options. We can help you choose the correct option on 01233 713581.
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