The 6mm diameter is industry standard for snowboard binding screws. They will work with your normal snowboard binding screws. Always be aware of the screw length. If the screw is too long it will prevent the Slider Track from sliding onto the Universal Puck system.
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These big pimping Spark Canted Pucks feature 3 degrees of knee saving cant (inward angle) combined with all the same great attributes of the standard Spark pucks including near infinite adjustability for splitboards built with inserts.