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28mm Laplock with a Poppy Red Seala Washer and Cap Pack of 100

£59.11 £49.26
16 In Stock

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  • Buy 9.99 for £53.20 £44.33 each and save 10%

Technical Specifications

  • Length - 38mm
  • Materials - Galvanised screw with black rubber sleeve and red plastic washers
  • Washer - Red Seala washer and cap surrounding a 19mm Neoprene washer
  • Head - 11mm Bi Hex RED plastic coated
  • Laplock Fixings are used when you are securing overlaps from a rooflight to either Steel or Fibre Cement roofing sheets.
  • This Version with the red Cap and Washer is designed for building regulations to mark where a rooflight is on a roof, it is advisable to use red.
  • This version with the Seala washer and cap is designed for Corrugated Profile roofs for securing the side laps
  • They can also be used to stitch some fibre cement accessories to the sheeting in situations where you are unable to pick up on the main supports. 
  • The fixing point must be Pre-Drilled before inserting the Laplock into the hole, you then tighten the top of the 8mm hex head which expands the rubber sleeve around the shaft, providing a firm and watertight fixing.
  • These have a 19mm Bonded neoprene washer.
  • They are also available individually.
  • High quality rubber sleeve to allow a strong, watertight seal
  • Red washer and cap for increased safety on roof
  • Seala washer and cap for increased safety on roof
  • Easy to install, predrill, plug and tighten
  • Rubber allows for expansion to prevent sheets cracking over time 

What is a Laplock?
A Laplock is a fixing with a rubber sleeve, This version comes with a RED Seala Washer and Cap, it is designed for corrugated profile GRP such as Iron Profile, Profile 3 and Profile 6.

Why do I need to use a Laplock?
It allows for expansion and contraction, if you used a metal fitting such as stitchers, this would crack the GRP sheet around the fixing.

How are they installed?
You pre-drill the sheet with a 7mm hole, you then put the Laplock into the hole and tighten the 8mm head, this will expand the rubber sleeve to close and watertight the hole.

Why do these have a red cap?
Red caps are required for building regulations; however it is always best practice to use red caps with a rooflight anyway, it makes the roof more secure and marks where a rooflight is if the roof gets covered.

What else do I need?
You may need an 11mm Bi Hex drill socket if you do not already, this is how you tighten the fixing

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