Fabricators will need to review which fasteners they use throughout window and door assemblies to ensure they meet the proposed new minimum security (Part Q) and thermal standards (Part L) for England and Wales, according to Rapierstar.

Paul Balfe, technical consultant at Rapierstar said: “The proposed changes to Parts L and Q will have big implications on the fasteners. So, if you are looking at changing any aspect of your window or door specification, it is really important to consider where you may need to change the fasteners too.

“For example, one of the steps some fabricators are taking to lower the overall U-value is to switch from steel reinforcement to thermal inserts. However, if you are doing this you will also need to change all fasteners that screw into the reinforcement, such as where a friction stay or door hinge is fixed to the frame, because a screw with a drill point will no longer be effective.

“Where PAS 24 is concerned, Rapierstar has a strong track record of working with fabricators and hardware suppliers helping them meet the test requirements, so we can advise on which fasteners are best to achieve a robust build quality that will resist typical methods of attack. The importance of fasteners in meeting PAS 24 is often overlooked but it really can make the difference between success and failure.”

The proposals tabled for changes to Part Q for England and Wales also include the requirement for all easily accessible glazing to contain at least one pane of laminated glazing to a minimum class of BS EN 356:2000 P1A – 6.8mm laminated and not 6.4mm laminated.

According to Rapierstar, this increased glass thickness might add extra weight to the window overall, which could mean hinges in opening casements need to be changed and a different type of fastener used to ensure it can be securely attached.