Description
Board depths of 180 mm and 200 mm need a plug that reaches past the insulation and still finds masonry, and the 220 mm sleeve is where the Klimas box count halves. Renders World lists it with the rest of the insulation fixing accessories range, so the deepest elevation on a job changes the plug and the order quantity, and nothing else.
What the LTX-10220 Fixes at the Deep End of the Range
The LTX 220mm polystyrene fixing plug 100pcs box holds hammer-in anchors assessed under ETA-16/0509, each taking 30 mm of anchorage to fix a 180 mm board on new-build masonry before the basecoat.
Body and pin are both plastic — polyethylene and glass-fibre reinforced polyamide — so nothing conductive runs from substrate to render. The data sheet declares a point thermal transmittance of 0.001 W/K surface-mounted and 0.000 W/K once the head is recessed and capped, which is why the immersed method earns its extra seconds at this board depth.
One correction worth carrying into a specification: this is not the end of the LTX-10 selection table. The sheet lists ten codes from 70 mm to 260 mm, and the 260 mm reaches 220 mm boards without a cutter. Renders World stocks nine of the ten, so 220 mm is the longest length on this shelf rather than the longest length Klimas makes — useful to know before a 200 mm board is specified against a cutter it does not need.
The assessment covers five substrate categories, and the strength table is indexed by substrate and density, never by plug length:
- Categories A and B, solid: concrete C20/25–C50/60 (≥ 2.30 kg/dm³) and solid clay brick (≥ 2.00 kg/dm³) both read 0.75 kN characteristic pull-out, the highest rows on the sheet. Concrete C12/15 (≥ 2.25 kg/dm³) gives 0.50 kN and calcium silicate solid brick 0.60 kN.
- Category C, hollow and perforated: calcium silicate hollow blocks (≥ 1.60 kg/dm³) and perforated brick (≥ 1.20 kg/dm³) sit at 0.60 kN; Porotherm 25 (≥ 0.80 kg/dm³) is the lowest row on the sheet at 0.40 kN.
- Categories D and E, lightweight: lightweight concrete blocks (≥ 0.88 kg/dm³) give 0.60 kN, AAC2 (≥ 0.35 kg/dm³) 0.50 kN and AAC7 (≥ 0.65 kg/dm³) 0.60 kN. Aerated concrete moves the embedment to 50 mm and the hole to 60 mm.
Each figure is a characteristic value carrying a partial safety factor of γM = 2.0 where no national regulation says otherwise, so the design value per fixing is half the table figure before wind loading is worked out at all. Design against the row your wall actually is — 0.40 kN on perforated clay block is the row that decides an order, not the range.
Where the 100-Piece Box Changes the Order
Every LTX-10 length from 70 mm to 200 mm is boxed in two hundreds. At 220 mm the count drops to 100, and the 260 mm follows it. That single line in the selection table is the most expensive thing on this page to get wrong.
- Compare per plug, not per box. A 100-piece box next to a 200-piece box on a price list looks like a cheaper product and is not; divide by the count before the two are set against each other.
- Halve the coverage. At the manufacturer's minimum densities a box covers 100 ÷ 6 = 16.7 m² in the field and 100 ÷ 8 = 12.5 m² in corner zones — roughly half what a shorter length delivers per box.
- Double the box count on the order sheet. An estimator working from habit on the 200-piece format will order half of what a deep elevation needs, which is worth a separate line rather than a mental note.
- Weight is not the constraint. The box is listed at 3 kg, so handling is straightforward; the count is the thing to watch, not the lift.
- The reach is genuine, though. Four documented board cases — 180 mm new-build surface-mounted, 200 mm with the cutter, 160 mm or 180 mm respectively over 20 mm of old plaster — are lengths no shorter plug on this shelf can serve.
Technical Specifications From the Klimas LTX-10 Data Sheet
| Parameter | Value |
|---|---|
| Product code | LTX-10220 |
| Fastener diameter (dk) | 10 mm |
| Overall length (Lk) | 220 mm |
| Plate diameter (Dk) | 60 mm |
| Anchorage depth (heff) | 30 mm; 50 mm in aerated concrete |
| Hole depth (h0) | 40 mm; 60 mm in aerated concrete |
| Body / pin material | PE / PA + GF |
| Point thermal transmittance (χ) | 0.001 W/K surface, 0.000 W/K immersed |
| Washer stiffness (S) | 0.50 kN/mm |
| Characteristic pull-out | 0.40–0.75 kN by substrate row, γM = 2.0 |
| Substrate use categories | A, B, C, D and E |
| Board thickness, new build | 180 mm; 200 mm with cutter (160/180 mm in aerated concrete) |
| Board thickness, old building with 20 mm plaster | 160 mm; 180 mm with cutter (140/160 mm in aerated concrete) |
| European Technical Assessment | ETA-16/0509 |
| Box quantity | 100 pcs |
| Listed box weight | 3 kg |
Board figures already include a 10 mm adhesive layer, and the old-building rows add 20 mm of plaster on top — the sheet's own rule is insulation plus sub-crusts plus anchorage depth. Two published mirrors of this document agree on every figure above and differ only in the assessment basis they name, ETAG 014 on the 2018 product sheet against EAD 330196-01-0604 on the catalogue pages. Quote the ETA number on a specification and that ambiguity never reaches the site.
How to Install the 220 mm Plug After the Boards Are Bonded
Mechanical fixing follows the adhesive, and the plug goes into a board already holding itself on the wall.
- Identify the substrate and confirm at least 100 mm of it at the fixing position, with 100 mm minimum spacing and 100 mm minimum edge distance.
- Bond the boards and let the adhesive reach the cure time its own data sheet states.
- Drill 10 mm diameter to 40 mm in solid masonry, or 60 mm in aerated concrete, keeping the hole at least 10 mm deeper than the embedment.
- Drill without impact in hollow brick, perforated units and aerated concrete — impact breaks the internal webs and takes the assessed pull-out with them.
- Clear the hole with four back-and-forth passes of the bit at reduced speed.
- Push the body in until the washer faces flush against the board, siting it where adhesive was applied behind the panel.
- Drive the pin in one continuous action; a pin already driven does not take a second hit.
- For an immersed head, cut the recess with the WK-FT plastic cutter (⌀66.7 mm, 90 mm thrust collar) and cap it with a KS or KSG polystyrene disc at ⌀67 × 17 mm.
Fixing numbers come from the thermal insulation design. Klimas recommends a minimum of 6 per m² in the field and 8 per m² in corner zones up to 15 m from the ground, rising to 8 and 10 above 15 m, and says in the same line that the recommendation does not replace the design. The fixing pattern and spacing method covers the layout, and the plug length calculation from board depth works a length back from board, sub-crusts and embedment.
Drill Reach and Hole Geometry at 220 mm
On a 180 mm board the hole runs 230 mm from board face to base: 180 mm board + 10 mm adhesive + 40 mm masonry. That is the working reach a bit has to give before chuck clearance is counted, which is a different tool from the one that suits a 100 mm elevation.
Perpendicularity repays a glance every few holes. Two degrees of drift across a 220 mm shank moves the expansion zone roughly 8 mm sideways (220 × tan 2° = 7.7 mm) — enough to seat it in a mortar joint, and the strength table has no row for mortar. Substrate assessment and drive technique are set out in full in the guide to installing insulation fixings.
Lengths and Pack Formats Side by Side
The LTX-10 family shares one body, plate, pin and assessment; only the sleeve changes. Renders World stocks nine lengths, and these four cover the deep end of the shelf.
| Length | New-build reach | Per box |
|---|---|---|
| LTX 160 mm plug | 120 mm | 200 |
| LTX 180 mm plug | 140 mm | 200 |
| LTX 200 mm plug | 160 mm | 200 |
| LTX 220 mm plug (this product) | 180 mm | 100 |
Choosing the Length for Your Board Thickness
- 180 mm boards on clean new-build masonry: this is the matched length, surface-mounted, with the recess-and-cap option where the 0.000 W/K figure matters to a calculation.
- 200 mm boards on new-build masonry: also this length, with the plastic cutter and an immersed head, which is the documented route to that depth.
- 160 mm boards over 20 mm of old plaster: this length again, because the plaster consumes the reach a shorter plug would have needed.
- 140 mm or 160 mm boards on sound masonry: step down to the 180 mm or 200 mm plug in the table above and gain the 200-piece box while doing it.
- Mineral wool rather than polystyrene: the sheet's scope is EPS and XPS boards, so a wool build-up is a separate fixing question and belongs with the wider fixing range.
Ordering runs in whole boxes. Renders World listed this box at £16.00 per 100 pieces and showed it in stock when the page was read in August 2026 — £16.00 ÷ 100 = £0.16 per plug, or about £0.96 per m² of wall at the field density of six. Pair it with graphite EPS insulation boards at 180 mm and both halves of the fixing decision are settled on one order.
FAQ — Reach, Pack Format and Quantities
How many boxes does a 100 m² elevation take?
One LTX 220mm polystyrene fixing plug 100pcs box covers 12.5–16.7 m² at the manufacturer's minimum densities: 100 ÷ 6 per m² = 16.7 m², and 100 ÷ 8 per m² = 12.5 m². Across 100 m² that is 100 ÷ 16.7 = 6.0 boxes at field density and 100 ÷ 12.5 = 8.0 with corner zones at eight, so eight boxes suits a typical deep elevation. The project's thermal insulation design sets the actual count.
Why does this length come in 100 rather than 200?
The selection table simply breaks the pack there: every code up to 200 mm is boxed in two hundreds, and the 220 mm and 260 mm are boxed in hundreds. Klimas gives no reason for it, and the listed 3 kg box weight suggests handling is not the driver, so treat it as a quantity fact rather than a specification and divide before comparing box prices.
What is the deepest board this plug reaches?
200 mm on new-build masonry, immersed with the plastic cutter, or 180 mm surface-mounted. Over 20 mm of existing plaster those figures become 180 mm and 160 mm. Beyond that the sheet moves to the 260 mm code, which reaches 220 mm without a cutter and 240 mm with one; it is documented by Klimas but not stocked here, so a 220 mm board is a conversation with the counter rather than an order.
How does it behave on aerated concrete blocks?
Characteristic pull-out is 0.50 kN on AAC2 at ≥ 0.35 kg/dm³ and 0.60 kN on AAC7 at ≥ 0.65 kg/dm³, both with γM = 2.0 applied. Aerated concrete also changes the geometry: 50 mm embedment, a 60 mm hole and rotation-only drilling, and reach drops by one step — 160 mm boards new-build without a cutter rather than 180 mm.
Which substrates need rotation-only drilling?
Hollow blocks, perforated clay units and aerated concrete all keep their internal webs intact when drilled without impact, and those webs are what the assessed pull-out rests on. Solid concrete and solid brick take impact mode, and every hole is cleared four times at reduced speed before the plug goes in.
Who decides how many fixings the wall needs?
The thermal insulation design does, against the wind loading for that building and exposure. Klimas publishes 6 and 8 per m², and 8 and 10 above 15 m, expressly as minimum recommendations that a design supersedes rather than as a specification on their own.
Technical Documentation — LTX-10 Data Sheets
- Klimas LTX-10 Product Data Sheet (PDF) — technical parameters, substrate strength table, the ten-row selection table and the sixteen-step installation method.
- Klimas LTX-10 catalogue sheet with installation data (PDF) — adds minimum substrate thickness, spacing and edge distance, plus the cutter and disc dimensions.