Abstract: The invention relates to a composite washer (100) for force indication and preventing a fastener from loosening. The composite washer comprising a top part (120) which has a circumferential extension around an axis, an elastic part (130) which has a circumferential extension around the axis a base part (140) which has a circumferential extension around the axis, wherein the top part, the elastic part and the base part are connected to each other, wherein the elastic part is arranged in-between the top part and the base part, wherein there is a central opening (102) which has an extension along the axis throughout the top part, the elastic part and the base part.

Abstract: A mesh panel holder (1) for an edge protection barrier system (30) comprising mesh panels (33) supported on posts (31) by means of the mesh panel holders. The mesh panel holder has a post attachment member (2) and a mesh panel support (3) attached to the post attachment member. The mesh panel support has a mesh panel retainer (4) arranged to pivot between at least a first locked position and a second locked position at different pivotal angles. The mesh panel retainer (4) is arranged to, in the first locked position, enable a mesh panel to be received at the mesh panel support, and, in the second locked position, prevent a received mesh panel from being unintentionally removed from the mesh panel holder. The mesh panel holder includes a resilient locking member (5), wherein unlocking of the mesh panel retainer from the first and second locked positions requires operation of the resilient locking member.