These receptacles use an embedded magnet to draw in and hold a matching magnet-lock clamping pin (QCMA-M, sold separately), providing quick, tool-free assembly for maintenance covers and other frequently removed panels. The receptacle features a slot rather than a round hole to mount the pin. This extends the tolerance range for the pin's position, allowing secure engagement even when pin mounting hole spacing isn't precisely aligned. This slotted receptacle (QCMA-SH) is designed to be used alongside a standard round-hole QCMA receptacle, with two QCMA-M clamping pins connecting the pair. Body is made from 303 stainless steel. Magnet is made from Neodymium. Two socket-head cap screws for mounting are included (M2x0.4 - 5 mm long).