This 40mm TRIMAX Laminated Padlock is dual locking and made with solid steel. The shackle has a 1/4" diameter and a 1" vertical clearance.
DUAL LOCKING 40mm SOLID STEEL LAMINATED PADLOCK W/ 1" X 1/4" Shackle
DUAL LOCKING 40mm SOLID STEEL LAMINATED PADLOCK W/ 1" X 1/4" Shackle