Dual-Thread PCB Retainer Design Cuts Installation Time

The new Series 236 Card-Lok from Schroff incorporates a
dual-thread design that allows the device to be compressed from both ends by turning a single screw, which means that it can be tightened or released twice as quickly as conventional PCB retainers, thereby helping to reduce installation time.

The actuating screw head is recessed to save space and can be specified as slotted or with a choice of metric hex sockets (2mm or 2.5mm).

Manufactured by Calmark, one of Schroff’s sister companies within the Pentair Technical Products Group, the new Card-Lok features a light-weight five-segment aluminium construction using solid-frame extrusion for maximum rigidity and resistance to distortion under load. Enclosed stainless-steel retaining springs are used to maintain alignment of the segments during insertion.

The PCB retainer is available with various finishes, including black anodised, electroless nickel and clear film. Standard lengths range from 121.9mm to 329.9mm, and the device measures 5.84mm high, with a width expandable from 7.32mm to 8.64mm.

Primarily designed for use in systems that are subjected to high levels of vibration, the Series 236 Card-Lok is ideal for securing PCBs in demanding environments such as avionics, defence, transportation, and the oil and gas industries.

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