• Galvanized insulation board disk 
• 8 pcs/m2
• Internal dia. 4,8 mm
• Dimensions: ø 36mm
• Pcs./box: 100

The JACKOBOARD® washers are used to fix JACKOBOARD Plano boards to substrates in many applications. No surface preparation is required. If the washers are used in a wet area, then sealing of the screw penetration will be required. This can be done with our wet fleece tape or by using our Boardfix and flattening off with a pallet knife.

Due to the JACKOBOARD® versatility, the construction boards can be used in a variety of applications.
•    The washers are designed to be used on stud walls, ceilings and timber floor applications
•    Stud wall application – washers to be screwed into stud at a           minimum of 8 fixings p/m2
•    Washer to be tightened/hammered home until the surface starts to crush the cementitious coating so not to be sitting proud and provide correct torque to fix the construction board
•    Washers are to be used with JACKOBOARD® 4mm diameter screws
•    Galvanised washers are suitable for dry and wet areas
•    Timber floor applications – screw washer fixings are used to help aid any expansion/contraction within the floor construction.
•    BBA tested to hold 100kg p/m2.