Cover up the screw head on your sign faces with our Snap Cap screw covers. The covers fit #6, #8 and #10 screws (Metric M3, M4 and M5). Ideal for panhead and roundhead fasteners, and rivets. Material is polypropylene with a UV stabiizer additive. Cap is attached to Base Washer by a hinge, which folds away neatly when cap is engaged. Available in four colors; black, white, silver grey and brown.