Pressure plate with integrated pressure indicator

A pressure plate to secure at least one glass pane or panel against a frame, comprising:

• opposed wings adjoined by at least one resilient web,
• each of the at least one resilient web extending between respective ends of the opposed wings and being resiliently bendable about a line of flexure, each of the at least one resilient web in a rest condition maintaining a space along the line of flexure between respective raised portions of the opposed wings that project forwardly beyond a front face of the at least one resilient web, each of the raised portions incorporating a respective bearing surface adjacent to the space and dimensioned to engage a respective portion of a head of a fastener passed through the space towards a frame;
• and
• at least one foot associated with each respective end of the opposed wings and extending beyond a rear face of the at least one resilient web,
• wherein the raised portions of the opposed wings are moveable across the space towards each other thereby to bend the at least one resilient web out of the rest condition about the line of flexure.