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

Code: FB1LAP38S28CL04E53
£54.24 Incl. VAT

18 In Stock

Code: FB1LAP38S28CL04E53
Availability: 18 In Stock
£54.24 Incl. VAT

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  • 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.
  • 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


  • 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