Kaiser Steel omitted a preferred stock dividend.

The cash-strapped company, which posted a $16.8-million loss for 1985, said it has omitted $6.2 million in preferred stock dividends and postponed until June repayment of $10.5 million in overdue bank loans. Kaiser said the banks agreed to the 2 1/2-month deferral provided that the money was paid to lenders before the company made any further dividend payments on its two classes of preferred stock. Fontana-based Kaiser Steel is privately owned and has no common stock.