TT 1A Testing methods for joints with mechanical fasteners in load-bearing timber structures. Appendix A: Punched metal plate fasteners

Punched metal plate fastener An integral nail plate fastener made of metal plate with thickness not less than 0.9 mm and not more than 2.5 mm, having integral projections punched out in one direction and bent perpendicular to the plane of the plate, being used as splice plate to join two or more pieces of timber of the same thickness. For this purpose the projections of the plate are fully embedded, using a press or roller, so that the contact surface of the plate is flush with the surface of the timber.