Navien
Navien Flat Head Taptite Screw M5 x 14 S18A 20046629A
Flat head Taptite screw, M5 x 14, S18A, manufactured by Navien for the LCB 700 boiler range.
At a glance
- Appliance family: LCB 700
£3.91
£3.26 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
A flat head Taptite screw, M5 x 14, with the S18A designation, manufactured by Navien. It is a fixing used in the assembly and servicing of Navien LCB 700 boilers. The Taptite thread form is intended for use in pre-formed or cast locations where a secure, vibration-resistant fixing is required.
Signs this part needs replacing
- The screw is missing from its fixing point after a service or strip-down.
- The head is rounded or chewed, so the correct driver no longer bites.
- Corrosion or surface damage on the screw body.
- The thread will no longer hold torque and the fixing works loose.
Before you order
- Confirm the appliance model and serial number against the fitment list.
- Check the existing fixing is M5 x 14 with a flat head.
- Confirm how many screws are required for the job, as this listing covers a single screw.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — |
Showing 10 of 36 compatible appliances.
Documents & drawings
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