Twistfix

Metal Fixings for Insulated Plasterboard
SKU
ISF18A-065-ZP-20
Price excl. VAT
£10.45
Price incl. VAT
£12.54
(15 items in stock)

Fixings for securing fixing plasterboard insulation sheets to brick and block walls. A galvanized mechanical anchor with a concave head to fix internal solid wall insulation

Insofast-18A is a fire proof insulation fixing having a self tapping shank and a dished head for indenting into plasterboard walls. The fastener drives through themal laminate sheets directly into Thermalite, Celcon or Durox lightweight blocks. A 4mm-5mm pilot hole is needed when fixing plasterboard insulation panels to brick, stone or concrete, depending on the strength of the masonry. 

Recommended embedment into substrate :

Aircrete 50-75mm

Brick / Block 40-60mm

Softwood 35-50mm 

The dished head compresses the gyproc layer without tearing the paper surface, leaving a deep recess ready for accepting and retaining filler material. A handy SDS adapter enables Insofast insulated plasterboard fixings to be hammer driven at speed to reduce the labour costs for internal solid wall insulation upgrades.

These mechanical fixings for plasterboard faced thermal insulation can be used in conjunction with dot and dab adhesive or in place of it.

Suitable for fixing foam insulated plasterboard - Celotex PL4000 or Kingspan K17 and K18. Use also to fix drywall sheets having an insulating polystyrene layer - Knauf Insulated Laminates and for fixing drywall having fire proof mineral wool insulation - Rockwool Rockliner.

Insulated plasterboard fixings can be hammered into the pilot holes with a rubber mallet or with an appropriate SDS adaptor in a lightweight SDS drill set at slow speed and with rotary action disengaged. Buy corrosion resistant stainless steel fixing for use with phenolic foam plasterboard insulation and to minimise thermal bridging.

Delivery Costs

Below is the standard tariff for guidance purposes.

Actual costs will be confirmed at point of sale and any variances you will be notified within 24 working hours of receipt of order

Delivery Option

   Price

UK Next Working Day (UK Mainland)

   £5.99 ex VAT (for orders below £150.00 ex VAT)

Free Next Day Delivery (UK Mainland)

   Free (for orders £150.00 ex VAT and above)

UK Next Day Pre 10.30am
   £19.00 ex VAT

UK Next Day Pre 12 (Noon)

   £13.00 ex VAT

UK Saturday Delivery

   £26 ex VAT

Northern Ireland (2-3 days)

   £49.99 ex VAT (weight up to 30kg)

   £60.00 ex VAT (weight between 30.1kg – 99.9kg)

   £90.00 ex VAT (100kg +)

Highlands & Islands of Scotland (2-3 days)

   £34.99 ex VAT

Click & Collect (from Preston, PR5 8AS)

   Free

Isle of Wight (2-3 day)

   £39.99 ex VAT (up to 30kg)

   £60.00 ex VAT (30.1kg +)

Free delivery

We offer free next-day delivery for all orders over £150 (ex VAT) (UK Mainland Only).

Next Day Delivery (UK Mainland Only)

Next day delivery is available for orders placed before 2pm Monday - Friday (working days). Delivery will be made on the next working day.

For orders placed before 2pm on a Friday, delivery will be made on the following Monday. For orders placed after 2pm on a Friday and over the weekend, delivery will be made on the following Tuesday. For orders placed on a Bank Holiday, goods will be dispatched on the next working day (e.g goods will be dispatched on the Tuesday for delivery on Wednesday). 

Pre 10.30am and Pre 12:00pm Next Day Delivery 

These delivery options are available at an extra charge. Delivery prices are shown at checkout stage. Orders need to be placed before 2pm Monday - Friday (working days) for delivery on the following working day.

International Delivery

Please note we no longer offer international delivery. 

Further information regarding Delivery can be read at our Terms & Conditions.

Returns Policy

Items returned and received in their original condition and packaging within 14 days of delivery will be accepted for exchange or refund subject to a 20% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should email sales@twistfix.co.uk to request to return items.

Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Twistfix will refund the cost of return shipping. Further information regarding Returns can be read at our Terms & Conditions.

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