Compression Disc-
Fastener used with screw to attach gypsum board, mineral board, or foam to metal frame. Hexagon points prevent disc from spinning and unique concave shape provides spring tension resulting in better hold on material with less damage. On harder materials, flattening of concave shape provides indication of proper level of tightening.


Weld Washers-
Provide means to attach corrugated metal to metal frame. Corrugated metal is placed against frame, weld washer on oppsite side of frame, and weld washer, corrugated metal and metal frame are fused into a single piece. Available in hexagon or rectangular (slotted) shapes.