step

The step by which to increment/decrement the current NumericTextBox value using the spinners or keyboard arrows.
Defaults to 1.

<input id="numeric" />

<script type="text/javascript">
    $(function () {
        $("#numeric").shieldNumericTextBox({
            min: 100,
            max: 1000,
            value: 300,
            step: 20
       });
    });
</script>