Designed to be used with the Quarter Turn fastener series QCTH, QCTHA, QCTHL, QCTHH. The embedded style allows for blind hole installation and is mounted with three socket head cap screws that are included (M3x0.5 - 6 mm long or M2X0.4 - 5 mm long). Made from 630 stainless steel with a natural finish. Plate thickness: over 10 mm.