M5 x 55mm Captive Socket Cap Head Screw (~DIN 912) | A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £6.40 | £7.68 |
| 50 - 99 | £5.69 | £6.83 |
| 100 - 249 | £5.12 | £6.14 |
| 250 - 499 | £4.66 | £5.59 |
| 500 - 999 | £4.27 | £5.12 |
| 1000 + | £3.66 | £4.39 |
Product Specification
| Thread Size | M5 |
| Pitch | 0.80mm |
| Length | 55mm |
| Captive Diameter | 3.8mm |
| Threaded Length | 10.0mm |
| Drive | H4 |
| Head Diameter | 8.5mm |
| Head Height | 5.0mm |
| Material | A4 Stainless Steel |
| Standard | Similar to DIN 912 |
Frequently Bought Together
Total Price: £0.00
M5 x 55mm Captive Socket Cap Head Screw (Similar to DIN 912) | A4 Stainless Steel | Vital Parts – HSC912CT-M5-55-A4
Fasten with accuracy using this M5 x 55mm Captive Socket Cap Head Screw, a stainless steel fixing based on the recognised DIN 912 socket cap head screw style. Designed for assemblies where the screw needs to remain with the panel or component, this part combines a 10mm threaded length with a 3.8mm captive diameter, helping support repeat access and controlled installation. The 8.5mm head diameter, 5mm head height, H4 drive and 0.80mm pitch make it suited to deeper housings, thicker panels and applications that need extra reach through an assembly.
Manufactured from A4 Stainless Steel with a self-colour finish, this captive cap head screw is selected for secure fastening in engineering, manufacturing and equipment maintenance environments. A4 stainless steel provides improved corrosion resistance compared with A2, making this option suitable for harsher external, washdown or marine-adjacent environments where a stainless finish is required. The socket cap head allows installation with a hex key or socket driver, giving a positive drive interface in applications where space around the head may be limited.
What Are Captive Socket Cap Head Screws?
Captive Socket Cap Head Screws are specialist fasteners used where a screw must stay attached to a panel, cover or access point after loosening. Unlike a standard fully removable cap screw, the captive design uses a reduced section and defined captive diameter so the fixing can be retained once installed with a compatible panel, washer, sleeve or retaining feature. This helps improve safety, speeds up servicing and reduces the risk of loose fasteners falling into machinery or being lost during maintenance.
Applications and Key Industries
This M5 captive socket cap head screw is used across UK manufacturing, engineering and equipment assembly where DIN 912 style head geometry, stainless steel material and a retained fixing format are required. Common use cases include:
- Machinery and Equipment: The M5 thread size and 55mm length make this screw useful for equipment doors, removable covers and maintenance access panels.
- Captive Panel Fixings: The 3.8mm captive diameter helps the fixing remain retained in prepared assemblies, reducing dropped or misplaced fasteners during maintenance.
- Stainless Steel Assemblies: The A4 stainless construction supports outdoor equipment, marine-adjacent hardware and exposed industrial assemblies where a neat socket cap head finish is needed.
Typical purchasers include procurement teams, design engineers, maintenance technicians, panel builders and production managers who need reliable stainless steel captive screws for repeat-access assemblies and controlled fixing points.
Why Choose This M5 x 55mm Captive Socket Cap Head Screw?
This screw is a practical choice when a standard socket cap screw could be removed and misplaced during servicing. The 10mm threaded section gives a defined engagement area while the 3.8mm captive diameter supports retention in the assembly. Because the part is Similar to DIN 912, it follows the familiar DIN 912 cap head style while providing the retained functionality required for access panels, machinery covers and specialist equipment.
Key Features
- DIN 912 style cap head: Familiar socket cap geometry with a H4 drive for secure tightening and controlled installation.
- Captive fixing design: The 3.8mm captive diameter and 10mm threaded length help keep the screw associated with the panel or component during removal.
- Corrosion-resistant a4 stainless steel construction: Suitable for stainless steel assemblies where strength, clean appearance and corrosion resistance are important.
- Application-specific length: The 55mm overall length is suited to where additional shank length is useful while the captive diameter supports retention in the panel.
Product Specifications
- Thread Size: M5
- Length: 55mm
- Threaded Length: 10mm
- Captive Diameter: 3.8mm
- Head Diameter: 8.5mm
- Head Height: 5mm
- Drive: H4
- Pitch: 0.80mm
- Standard: Similar to DIN 912
- Material: A4 Stainless Steel
- Colour: Self-colour
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