These padlocks are great for using in severe weather conditions. The lock arm and housing are covered by a rubber armor, which prevents rust and corrosion. Perfect for gates and truck tool boxes, these locks were made to handle rough weather. Designed for years of dependable use. Big lock- shackle thickness: 7/16" | shackle width clearance: 7/8" | shackle height clearance: 2". Small lock - shackle thickness: 7/16" | shackle width clearance: 7/8" | shackle height clear.: 1". Big lock: body width: 2-1/8". Small lock: body with: 2-1/8". Bottom has slightly larger width for both locks. Body thickness for both locks: 7/8"