The maxiFLOW heat sinks add an integral push-pin mounting system for attachment to components. The pins run through opposite corners of the sinks and mount into 3-mm holes in the PCB. An integral spring on each pin provides approximately 2 lbs. of retention load. Push-pin mount maxiFLOW heat sinks are available in sizes ranging from 37.4 mm x 37.5 mm x 10 mm to 41.4 mm x 45.75 mm x 24.5 mm. Prices start at $3.56 each in high volume. ADVANCED THERMAL SOLUTIONS INC., Norwood, MA. (781) 769-2800.