M3.5 x 20mm Cap Head Captive Screw (H2.5) (~DIN 912) | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 49 | £4.88 | £5.85 |
| 50 - 99 | £4.33 | £5.20 |
| 100 - 249 | £3.90 | £4.68 |
| 250 - 499 | £3.54 | £4.25 |
| 500 - 999 | £3.25 | £3.90 |
| 1000 + | £2.78 | £3.34 |
£5.85 / each
Product Specification
| Thread Size | M3.5 |
| Pitch | 0.60mm |
| Length | 20mm |
| Captive Diameter | 2.6mm |
| Threaded Length | 7.0mm |
| Drive | H2.5 |
| Head Diameter | 6.0mm |
| Head Height | 3.5mm |
| Material | A4 Stainless Steel |
| Standard | Similar to DIN 912 |
Frequently Bought Together
Total Price: £0.00
M3.5 x 20mm Captive Socket Cap Head Screw | Similar to DIN 912 | A4 Stainless Steel
For laboratory equipment, instrumentation and technical enclosures, this M3.5 x 20mm captive socket cap head screw provides a retained fastening format that can reduce loose screws during servicing or repeated access. The H2.5 hex socket gives positive tool engagement while the 6.0mm head diameter and 3.5mm head height follow a DIN 912-style cap head geometry. 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?
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
- 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.
M3.5 x 20mm Captive Socket Cap Head Screw Dimensions
- Thread Size: M3.5
- Length: 20mm
- Threaded Length: 7.0mm
- Captive Diameter: 2.6mm
- Head Diameter: 6.0mm
- Head Height: 3.5mm
- Drive: H2.5
- Pitch: 0.60mm
- Standard: Similar to DIN 912
- Material: A4 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.
- M3.5 thread size with 20mm overall length provides the primary screw dimensions.
- 2.6mm 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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