M4 x 18mm Cap Head Captive Screw (H3) (~DIN 912) | A2 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £3.27 | £3.93 |
| 50 - 99 | £2.91 | £3.49 |
| 100 - 249 | £2.62 | £3.14 |
| 250 - 499 | £2.38 | £2.86 |
| 500 - 999 | £2.18 | £2.62 |
| 1000 + | £1.88 | £2.25 |
£3.93 / each
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Product Specification
| Thread Size | M4 |
| Pitch | 0.70mm |
| Length | 18mm |
| 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 18mm Captive Socket Cap Head Screw | Similar to DIN 912 | A2 Stainless Steel
This M4 x 18mm socket captive screw is suited to automation systems, machine covers and removable guards where removable panels must be opened without completely separating the fastening hardware. The 0.70mm pitch, H3 drive and 8.0mm threaded length provide the main installation details for the screw. 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?
Captive Socket Cap Head Screws are specialist fasteners designed to stay attached to a panel, cover or component after the threaded portion has been loosened. A reduced captive section works with a compatible panel, washer, sleeve or retaining feature so the screw can remain retained instead of falling free.
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 18mm Captive Socket Cap Head Screw Dimensions
- Thread Size: M4
- Length: 18mm
- 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
- 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.
- 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.
View the full Cap Head Captive Screws range to compare thread sizes, lengths, drives 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. If you need help selecting the correct retained fixing, call us on 01233 713581.
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