M4 x 55mm Cap Head Captive Screw (H3) (~DIN 912) | A2 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £7.10 | £8.52 |
| 50 - 99 | £6.31 | £7.57 |
| 100 - 249 | £5.68 | £6.82 |
| 250 - 499 | £5.17 | £6.20 |
| 500 - 999 | £4.73 | £5.68 |
| 1000 + | £4.06 | £4.87 |
£8.52 / each
Product Specification
| Thread Size | M4 |
| Pitch | 0.70mm |
| Length | 55mm |
| Captive Diameter | 3.0mm |
| Threaded Length | 8.0mm |
| Drive | H3 |
| Head Diameter | 7.0mm |
| Head Height | 4.0mm |
| Material | A2 Stainless Steel |
| Standard | Similar to DIN 912 |
Frequently Bought Together
Total Price: £0.00
M4 x 55mm Captive Socket Cap Head Screw | Similar to DIN 912 | A2 Stainless Steel
For general engineering applications requiring retained fasteners, this M4 x 55mm socket captive screw provides a retained fastening format that can reduce loose screws during servicing or repeated access. The H3 hex socket gives positive tool engagement while the 7.0mm head diameter and 4.0mm head height follow a DIN 912-style cap head geometry. 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?
Cap Head Captive Screws combine a DIN 912-style socket cap head with a reduced section intended for captive retention. They are useful on equipment that requires repeated access because the screw can remain with the removable part during servicing which reduces the chance of loose fixings being dropped or misplaced.
Common Applications
- Jigs and Fixtures: Keeps adjustment or access fasteners associated with suitable workshop fixtures and production tooling.
- Laboratory Equipment: Supports retained panel fixing on instruments and serviceable technical equipment.
- Fabricated Housings: Provides a captive fastening format for custom covers, guards and equipment enclosures.
- General Engineering: Useful where a screw needs to remain attached to the assembly after disengaging from its mating thread.
M4 x 55mm Captive Socket Cap Head Screw Dimensions
- Thread Size: M4
- Length: 55mm
- Threaded Length: 8.0mm
- Captive Diameter: 3.0mm
- Head Diameter: 7.0mm
- Head Height: 4.0mm
- Drive: H3
- Pitch: 0.70mm
- Standard: Similar to DIN 912
- Material: A2 Stainless Steel
Key Benefits
- Similar to DIN 912 describes the DIN 912-style dimensional format used for this captive screw.
- Captive format can reduce dropped or misplaced fasteners during servicing when installed with a suitable retaining feature.
- 3.0mm captive diameter provides the reduced section used with a compatible retention feature.
- 4.0mm head height provides the specified socket cap head profile.
See our wider Socket Cap Head Captive Screws range for other sizes and stainless steel grades. We also stock other styles in our Captive Screws range, including countersunk captive screws for applications where a flush head is preferred. For product-selection support, speak with our team on 01233 713581.
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