Kwik-Lok Transom Tie-Downs. The Kwik-Lok buckle tie-downs feature vinyl-coated top hooks, zinc-coated trailer hooks, along with durable polypropylene webbing and a protective web pad. Warning: This product can expose you to chemicals including lead or di(2-ethylhexyl)phthalate or other chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.