This kit is intended to be used in place of standard NEMA door clamps to provide quick access into an enclosure. Clamps will fit Type 4X, 4 and 12 single door wall mount enclosures. They will also replace the clamps used on Type 4X and Type 4 Floor Standing Enclosures. Each kit contains two each - door clamps, fast access screw fasteners, springs and washers. Gasket compression is controlled by turning the handle in or out of the bracket.