Description
For 80 mm graphite EPS — the UK's most widely specified domestic retrofit board thickness — the Klimas LTX 110 mm hammer-in plug is the matched mechanical anchor, delivering 0.75 kN characteristic pull-out in concrete C20/25 at a point thermal transmittance of just 0.001 W/K. Certified under European Technical Assessment ETA-16/0509 across five substrate categories and supplied in 200-piece boxes covering roughly 25–33 m² at standard fixing density.
Where LTX 110 mm Plugs Perform Best — Standard UK Domestic Retrofit
The LTX 110 mm plug is the matched mechanical fixing for 80 mm EPS and XPS boards across the bulk of UK domestic external wall insulation retrofit work, anchoring boards into concrete, solid brick, perforated brick, lightweight block, and aerated concrete under ETA-16/0509 assessment to ETAG 014. Its 30 mm effective embedment — rising to 50 mm in aerated concrete — delivers characteristic pull-out of 0.75 kN in concrete C20/25, well above the design loads typical of two-storey semi-detached and terraced properties. The 110 mm length sits one step up from the 50 mm board plug within the fixing accessories range, where each length corresponds to a specific board-thickness band.
On retrofit walls with 20 mm of existing plaster beneath the adhesive layer, surface-mounted board capacity reduces to 50 mm, while immersed mounting extends it back to 70 mm. The 60 mm pressure flange spreads clamping load broadly and its moulded adhesive-pocket profile keys the basecoat directly over each fixing — exactly where rendered finishes can otherwise show faint shadow lines under low-angle raking light.
Why Specifiers Choose the LTX 110 mm Plug
- Matched to the UK's most popular retrofit board thickness: 80 mm graphite EPS is the headline specification across domestic refurbishment, ECO-funded work, and Warm Homes programme installations, and the 110 mm plug is engineered for that thickness on standard masonry with no compromise on embedment.
- Virtually zero thermal bridging at every fixing point: all-plastic construction delivers point thermal transmittance (χ) of 0.001 W/K surface-mounted, falling to 0.000 W/K when immersed, so the U-value calculation stays accurate and no cap-pattern appears on the finished facade in damp or cold weather.
- Five-substrate certification under one product code: ETA-16/0509 covers the full range of UK masonry from Victorian solid brick through to modern cellular blockwork, all on a single SKU and a single drill bit.
- 0.75 kN characteristic pull-out in concrete C20/25: the all-plastic design trades a small headroom against metal-pin pull-out for complete thermal-bridge elimination, and comfortably exceeds design requirements for standard domestic EPS systems at typical UK wind exposures.
- Glass-fibre reinforced pin drives clean in cold UK conditions: the polyamide pin stays rigid through hammer impact at low winter temperatures, where unreinforced plastic risks deflection and metal pins create condensation rings around the head.
- Pack maths matches a typical semi-detached: 60–70 m² of wall at 6 plugs/m² central plus 8 plugs/m² at corners lands at roughly 400–480 fixings, so two 200-piece boxes plus a small reserve cover the property end-to-end without leftover stock.
Technical Specifications — LTX-10110 Data Sheet Highlights
| Parameter | Value |
|---|---|
| Product code | LTX-10110 |
| Plug diameter (dk) | 10 mm |
| Overall length (Lk) | 110 mm |
| Flange diameter (Dk) | 60 mm |
| Anchorage depth (heff) | 30 mm (50 mm in aerated concrete) |
| Drill hole depth (h0) | 40 mm (60 mm in aerated concrete) |
| Drill bit diameter | 10 mm |
| Body material | Polyethylene (PE) |
| Pin material | Polyamide + glass fibre (PA + GF) |
| Point thermal transmittance (χ) — surface | 0.001 W/K |
| Point thermal transmittance (χ) — immersed | 0.000 W/K |
| Characteristic pull-out (concrete C12/15) | 0.50 kN |
| Characteristic pull-out (concrete C20/25 / solid brick) | 0.75 kN |
| Board thickness — surface mount (new-build) | up to 70 mm |
| Board thickness — immersed mount (new-build) | up to 90 mm |
| Board thickness — surface mount (retrofit, 20 mm plaster) | up to 50 mm |
| Certification | ETA-16/0509 (ETAG 014 / EAD 330196-01-0604) |
| Pack quantity | 200 pcs |
How to Install the LTX 110 mm Plug — Drilling, Embedment, Finishing
Installation follows the three-step cycle: drill, insert sleeve, hammer pin. Drill a 10 mm hole to 40 mm depth (60 mm in aerated concrete), using impact mode on concrete and solid brick or rotation-only mode on hollow and aerated substrates to preserve the cell structure that gives those materials their pull-out resistance. Clear masonry dust with three or four strokes at reduced speed, insert the polyethylene sleeve until the flange sits flush with the board face, then drive the glass-fibre pin with firm, even blows until the head seats against the sleeve collar.
- Surface mounting (standard method): suits 80 mm boards on new-build masonry and 50 mm on retrofit with existing plaster; the head sits 2–3 mm proud, ready for basecoat.
- Immersed mounting (best thermal and visual result): cut a recess with the EPS hole cutter, fix as normal, then seat a graphite EPS cap flush over the head to extend new-build board capacity to 90 mm and drop χ to 0.000 W/K.
- Aerated concrete adjustment: drill to 60 mm and use rotation-only mode; the 50 mm embedment maintains rated pull-out without crushing the cellular substrate.
- Mixed surface/immersed elevations: countersink the immersed fixings first, then drill the surface-mount holes, so cutter dust does not settle into open holes across reveal-to-main-wall transitions.
- Perpendicular drilling discipline: keep the drill square to the wall face, since an angled hole pushes part of the expansion zone outside the substrate and reduces pull-out.
For full sequencing across an elevation — base-track interface, corner-zone density, and snagging inspection — the complete EWI fixings installation guide walks each stage. To calculate plug counts by wind zone and building height, the fixing pattern and spacing calculation method works through examples aligned to ETAG 014 design loads.
How LTX 110 mm Compares to Sibling LTX Plug Lengths
The LTX-10 range covers nine plug lengths from 70 mm to 220 mm. The 110 mm is the third variant by length and the most widely specified across UK domestic retrofit, with the 90 mm below for 50 mm boards and the 120 mm above for retrofit walls with thicker plaster or 90 mm board zones.
| Variant | Key Spec | When to Choose |
|---|---|---|
| LTX 90 mm (200 pcs) | 40–50 mm board · 30 mm embed | 50 mm domestic EWI, soffits |
| LTX 110 mm (this product) | 60–80 mm board · 0.75 kN pull-out | 80 mm domestic retrofit (UK standard) |
| LTX 120 mm (200 pcs) | 80–90 mm board · 30 mm embed | Thicker plaster, 90 mm boards |
The plug body, flange dimensions, pin material, and ETA certification stay identical across the range — only the sleeve length changes to match board thickness plus adhesive plus embedment. On a typical UK refurbishment specifying 80 mm graphite EPS on the main walls and 30 mm boards at reveals, the 110 mm handles the main elevations and the 70 mm handles the reveals, both running through the same 10 mm drill bit and the same cycle.
Pro Tips From UK Installers Using LTX 110 mm Plugs
The 110 mm plug is the volume fixing on UK domestic retrofit, and small habits in pack ordering and drill discipline compound across the typical 400-plug semi-detached property.
- Order two boxes plus a half for a standard semi. Two boxes cover the central zones, and the third half-box covers corners plus a misdrilled-hole reserve, which saves a same-week reorder.
- Countersink the immersed fixings before drilling surface-mount holes on mixed elevations. Cutter dust falls into open holes and packs under the sleeve, so sequencing by mount type keeps the substrate clean.
- Keep the drill perpendicular on solid brick. An angled hole shifts the expansion zone partially outside the brick, dropping pull-out below the 0.75 kN rated value — a quiet issue that only shows on a pull-test.
- Change to rotation-only on aerated concrete and lightweight block. The visible powder returning from hammer mode is broken cells, not just dust, and the pull-out value drops with it.
- Pull-test one plug per 50 on retrofit substrates of unknown age or grade. A manual pull on a sample confirms rated resistance before the next pallet goes up the scaffold.
Is the LTX 110 mm Plug Right for Your Project?
- Standard 80 mm EPS or XPS domestic retrofit on masonry: the 110 mm length is the matched specification for the UK's most common board thickness, paired with a graphite EPS cap for a flush thermal finish across the full substrate range from solid brick to aerated concrete.
- 50 mm board zones on the same elevation: step down to the LTX 90 mm plug, which keeps drill bit and installation cycle identical.
- Retrofit walls with 20 mm plaster carrying 80 mm boards: step up to the LTX 120 mm plug for the additional sleeve length needed to maintain full embedment into the structural substrate.
- Mineral wool slabs on fire-rated facades or high-rise: steel-pin fixings are typically called up for non-combustible fixing chains under current Approved Document B guidance. Matching Rockwool mineral wool slabs are stocked in the range.
- 80 mm boards to go with these plugs: the graphite EPS insulation boards stock 80 mm in matching pack sizes, ready to pair on a single order.
FAQ — LTX 110 mm Coverage, Compatibility, Substrate Limits
How many boxes do I need for a typical semi-detached house?
A standard two-storey UK semi typically presents 60–70 m² of insulated wall. At 6 plugs/m² in central zones and 8 plugs/m² at corners and edges where wind suction concentrates, the total falls in the 380–480 plug range. Two 200-piece boxes (400 plugs) cover the central zones comfortably, with a third box providing corner-zone fixings and a practical reserve for misdrilled holes. Non-standard shapes and higher wind zones should be confirmed by a project-specific calculation.
Does the LTX 110 mm work on retrofit walls with existing plaster or render?
Yes. With up to 20 mm of existing plaster beneath the adhesive layer, the 110 mm length supports boards up to 50 mm surface-mounted or up to 70 mm immersed. For 80 mm boards on heavily rendered retrofit walls, the LTX 120 mm provides the additional sleeve length needed to maintain the full 30 mm anchorage into structural masonry. A test hole at quoting stage confirms substrate condition and plaster thickness on unfamiliar properties.
What pull-out resistance does the LTX 110 mm achieve?
Characteristic pull-out under ETA-16/0509 is 0.50 kN in concrete C12/15, rising to 0.75 kN in concrete C20/25 and solid brick, which comfortably exceeds wind-suction design loads for domestic EPS systems on typical UK substrates. Metal-pin fixings deliver higher headroom for dense mineral wool at height, with the trade-off of measurable point thermal bridging at each fixing — typically χ of 0.002–0.004 W/K against 0.001 W/K for the LTX.
Can the 110 mm plug handle thicker boards with immersed mounting?
Yes — countersinking the board face with an EPS hole cutter before drilling extends surface-mounted board capacity from 70 mm to 90 mm on new-build substrates and from 50 mm to 70 mm on retrofit walls with existing plaster. Immersed mounting also drops point thermal transmittance to 0.000 W/K, so the technique delivers both a thickness gain and a thermal improvement in the same step.
Is the LTX 110 mm certified for aerated concrete?
Yes — substrate Category E (aerated concrete) is covered by ETA-16/0509. On aerated concrete the anchorage depth increases to 50 mm and the drill hole to 60 mm, so the 110 mm sleeve supports boards up to 50 mm on new-build aerated substrates. For 80 mm boards on aerated substrates, longer LTX variants provide the additional sleeve length needed.
How should LTX plugs be stored on site?
Keep the 200-piece boxes in a dry store at normal site temperatures. The polyethylene body and polyamide pin remain stable across the −20 °C to +60 °C range typical of UK conditions and are unaffected by humidity. Avoid prolonged direct sun on stripped pallets, since UV degrades unprotected thermoplastics over multi-year exposure — a storage discipline point rather than a short-term concern.
Are the LTX plugs suitable for embodied-carbon-tracked projects?
The polyethylene body and polyamide pin are recyclable thermoplastics that enter standard plastics recovery streams, and the cardboard packaging recycles through paper and card collection. The all-plastic range also carries lower upfront embodied carbon than steel-pin alternatives, which suits sustainability-targeted specifications under PAS 2035 and Warm Homes programme requirements. Renders World holds the full LTX range in matched lengths, keeping specification and reordering straightforward.
Technical Documentation — LTX-10 TDS and ETA