M4 x 55mm Cap Head Captive Screw (H3) (~DIN 912) | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £7.35 | £8.82 |
| 50 - 99 | £6.53 | £7.84 |
| 100 - 249 | £5.88 | £7.06 |
| 250 - 499 | £5.34 | £6.41 |
| 500 - 999 | £4.90 | £5.88 |
| 1000 + | £4.20 | £5.04 |
£8.82 / 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 | A4 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 | A4 Stainless Steel
Made for repeat-access assemblies, this M4 x 55mm retained cap head screw uses a reduced 3.0mm section between the threaded portion and head area. When paired with a compatible captive feature, this allows the fixing to remain with the panel after disengaging from the mating thread. A4 Stainless Steel provides enhanced corrosion resistance for suitable outdoor, washdown, coastal and marine applications where a higher level of environmental resistance is required.
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: A4 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.
Browse the complete Cap Head Captive Screw collection for alternative dimensions and materials. For different head styles, browse our complete Captive Screws range. We also offer countersunk captive screws as well as pan head, button head and knurled options. We can help you choose the correct option on 01233 713581.
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