This Steel Padlock (rekeyable) has a weatherproof hockey puck design, no shackle, and a universal fit for all trailer hasps. It includes a 3/8" internal shackle and an enlarged lock opening.
TRIMAX "Hockey-Puck" Internal Shackle Trailer Door Lock -Universal Fit (re-keyable)
TRIMAX "Hockey-Puck" Internal Shackle Trailer Door Lock -Universal Fit (re-keyable)